CN105828304A - Method and device for realizing background music service based on ring back tone platform - Google Patents

Method and device for realizing background music service based on ring back tone platform Download PDF

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Publication number
CN105828304A
CN105828304A CN201510011288.7A CN201510011288A CN105828304A CN 105828304 A CN105828304 A CN 105828304A CN 201510011288 A CN201510011288 A CN 201510011288A CN 105828304 A CN105828304 A CN 105828304A
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China
Prior art keywords
address information
called subscriber
media address
calling subscribe
telephone services
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CN201510011288.7A
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CN105828304B (en
Inventor
杨振有
刘丽萍
张转正
刘志萍
李莹
黄梅英
夏冰
孙启昌
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China Mobile Group Henan Co Ltd
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China Mobile Group Henan Co Ltd
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Abstract

The invention discloses a method and a device for realizing background music service based on a ring back tone platform for saving resources. The method comprises steps: after the ring back tone platform changes calling-side media address information carried by a received request message sent by a calling user into ring back tone platform-side first media address information, the first media address information is then sent to a called user, a called-side media address information carried by a received 183 message sent by the called user is changed into ring back tone platform-side second media address information, the second media address information is sent to the calling user, after the called user gives a response, received first voice data sent by the calling user and first background music data are subjected to mixing operation and then sent to the called user, or, received second voice data sent by the called user and second background music data are subjected to mixing operation and then sent to the calling user, and thus, unification of the background music service and the ring back tone service can be realized based on the ring back tone platform, service diversity functions are provided, the service flow is more independent, and resource waste is reduced.

Description

A kind of method and device realizing diversiform telephone services based on color ring platform
Technical field
The present invention relates to the communications field, particularly to a kind of method and device realizing diversiform telephone services based on color ring platform.
Background technology
Communication service constantly provides the user new space and possibility along with the fast development of communication service, and diversiform telephone services arises at the historic moment.So-called diversiform telephone services, i.e. during calling and called user's communication, plays the business of background music for it.
In prior art, the implementation of diversiform telephone services is mainly by following several:
The first, set up color speech platform, when dialing called subscriber, particular number prefix need to be added before called number, after color speech platform receives the calling added with particular number prefix, it is provided that a Three-Way Calling environment comprising calling and called circuit, color speech circuit, Three-Way Calling environment is play background music, and complete the audio mixing of background music and calling and called user speech, it is achieved diversiform telephone services.
The second, calling terminal adds for the memory module of diversiform telephone services, decoder module and mix module, calling terminal the color speech data in memory module are sent to decoder module decoding and with the voice data received audio mixing in mix module, play the sound after audio mixing;Meanwhile, color speech data and voice data to be sent are carried out audio mixing by calling terminal, send the sound after audio mixing to terminal called, it is achieved diversiform telephone services.
The third, user selects to open diversiform telephone services while opening Ring Back Tone service.After color ring platform judges that called subscriber opens diversiform telephone services, continue to play color speech background tone when calling and called user's communication, and calling and called and color speech path are carried out meeting audio mixing, it is achieved diversiform telephone services.
First kind of way needs calling subscribe actively to add particular number prefix, and the second way needs to transform terminal, and two ways all adds the complexity that diversiform telephone services realizes.In the third mode, color ring platform needs to participate in the whole process of calling, if user does not applies for diversiform telephone services, then after calling is connected, though color ring platform need not provide diversiform telephone services, but still needs to continue to stay in call path, causes circuit resource to waste.
Summary of the invention
The embodiment of the present invention provides a kind of method realizing diversiform telephone services based on color ring platform, in order to provide business diversity function, and makes operation flow the most independent, and reduces the wasting of resources.
The concrete technical scheme that the embodiment of the present invention provides is as follows:
A kind of method realizing diversiform telephone services based on color ring platform, including:
Color ring platform receives the request INVITE carrying Calling Side media address information that calling subscribe sends, and the diversiform telephone services mark judgement preset according to described calling subscribe or called subscriber is when needing to provide diversiform telephone services, change to described Calling Side media address information after described color ring platform is the first media address information that described called subscriber determines, send described INVITE to described called subscriber;
Color ring platform receives 183 message carrying callee side media address information that described called subscriber sends, and when needing to provide diversiform telephone services according to the mark judgement of described diversiform telephone services, change to described callee side media address information after described color ring platform is the second media address information that described calling subscribe determines, send described 183 message to described calling subscribes;
Color ring platform receive described called subscriber send for indicating described called subscriber to be in 180 message of ringing condition, and when needing to provide diversiform telephone services according to the mark judgement of described diversiform telephone services, described 180 message are sent directly to described calling subscribe, and send CRBT tone to described calling subscribe;
Color ring platform determines described called subscriber answer, and when needing to provide diversiform telephone services according to the mark judgement of described diversiform telephone services, when receiving the first speech data that described calling subscribe sends according to described second media address information, then the data of described first speech data and the first color speech background sound are carried out mixing operation and sends to described called subscriber, or, when receiving the second speech data that described called subscriber sends according to described first media address information, then the data of described second speech data and the second color speech background sound are carried out mixing operation and sends to described calling subscribe.
As such, it is possible to realize the unification of CRBT and diversiform telephone services based on color ring platform, and provide business diversity function, and make operation flow the most independent, and reduce the wasting of resources.
It is preferred that change to described Calling Side media address information before described color ring platform is the first media address information that described called subscriber determines, farther include:
Color ring platform determines the first media address information for described called subscriber, reserved the first media resource comprising described first media address information, and, determine the second media address information for described calling subscribe, reserved the second media resource comprising described second media address information.
It is preferred that described color ring platform determines described called subscriber answer, and when needing to provide diversiform telephone services according to the mark judgement of described diversiform telephone services, between described calling subscribe and described called subscriber during interaction data, farther include:
Color ring platform opens dual tone multi-frequency dtmf detection, when receiving the DTMF code stream information of described calling subscribe or described called subscriber transmission, according to described DTMF code stream information, performs the most operation associated to color speech background sound.
It is preferred that described color speech background sound is performed corresponding operation associated time, at least perform following operation:
When receiving the DTMF code stream information that calling subscribe sends, the DTMF code stream information sent according to described calling subscribe, regulate the volume of the second color speech background sound; or; suspend or start the second color speech background sound, or, open or close the second color speech background sound;
When receiving the DTMF code stream information that called subscriber sends, the DTMF code stream information sent according to described called subscriber, regulate the volume of the first color speech background sound; or; suspend or start the first color speech background sound, or, open or close the first color speech background sound.
It is preferred that farther include:
Color ring platform receives the INVITE carrying Calling Side media address information that calling subscribe sends, and the diversiform telephone services mark judgement preset according to described calling subscribe or called subscriber is when need not provide diversiform telephone services, the 3rd media address information is determined just for described calling subscribe, reserved the 3rd media resource comprising described 3rd media address information, and described INVITE is sent directly to described called subscriber;
Color ring platform receives 183 message carrying callee side media address information that described called subscriber sends, and when need not provide diversiform telephone services according to the mark judgement of described diversiform telephone services, described 183 message is sent directly to described calling subscribe;
Color ring platform receives 180 message being used for indicating described called subscriber to be in ringing condition that described called subscriber sends, and when need not provide diversiform telephone services according to the mark judgement of described diversiform telephone services, the the first renewal UPDATE message carrying described 3rd media address information is sent to described calling subscribe, to notify that the media address information of far-end is changed to described 3rd media address information by described calling subscribe, and, after receiving the 200OK message carrying Calling Side media address information that described calling subscribe returns, described 180 message and CRBT tone data are sent to described calling subscribe, realize the CRBT tone data interaction between described calling subscribe and described color ring platform;
Color ring platform determines described called subscriber answer, and when need not provide diversiform telephone services according to the mark judgement of described diversiform telephone services, the second UPDATE message carrying described callee side address information is sent to described calling subscribe, to notify that the media address information of far-end is changed to described callee side media address information by described calling subscribe, it is achieved the speech data between described calling subscribe and described called subscriber is mutual.
Media processing units, for receiving the request INVITE carrying Calling Side media address information that calling subscribe sends, and the diversiform telephone services mark judgement preset according to calling subscribe or called subscriber is when needing to provide diversiform telephone services, change to described Calling Side media address information after described color ring platform is the first media address information that described called subscriber determines, send described INVITE to described called subscriber;
And, for receiving 183 message carrying callee side media address information that described called subscriber sends, and when needing to provide diversiform telephone services according to the mark judgement of described diversiform telephone services, change to described callee side media address information after described color ring platform is the second media address information that described calling subscribe determines, send described 183 message to described calling subscribes;
And, for receive described called subscriber send for indicating described called subscriber to be in 180 message of ringing condition, and when needing to provide diversiform telephone services according to the mark judgement of described diversiform telephone services, described 180 message are sent directly to described calling subscribe, and send CRBT tone to described calling subscribe;
Downmixing unit, for determining described called subscriber answer, and when needing to provide diversiform telephone services according to the mark judgement of described diversiform telephone services, when receiving the first speech data that described calling subscribe sends according to described second media address information, then the data of described first speech data and the first color speech background sound are carried out mixing operation and sends to described called subscriber, or, when receiving the second speech data that described called subscriber sends according to described first media address information, then the data of described second speech data and the second color speech background sound are carried out mixing operation and sends to described calling subscribe.
As such, it is possible to realize the unification of CRBT and diversiform telephone services based on color ring platform, and provide business diversity function, and make operation flow the most independent, and reduce the wasting of resources.
Preferably, described Calling Side media address information is being changed to before described color ring platform is the first media address information that described called subscriber determines by described media processing units, it is further used for determining the first media address information for described called subscriber, reserved the first media resource comprising described first media address information, and, the second media address information is determined, reserved the second media resource comprising described second media address information for described calling subscribe.
It is preferred that after determining described called subscriber answer, between described calling subscribe and described called subscriber during interaction data, described device farther includes:
Detector unit, is used for opening dual tone multi-frequency dtmf detection, when receiving the DTMF code stream information of described calling subscribe or described called subscriber transmission, according to described DTMF code stream information, performs the most operation associated to color speech background sound.
It is preferred that described detector unit color speech background sound is performed corresponding operation associated time, at least perform following operation:
When receiving the DTMF code stream information that calling subscribe sends, the DTMF code stream information sent according to described calling subscribe, regulate the volume of the second color speech background sound; or; suspend or start the second color speech background sound, or, open or close the second color speech background sound;
When receiving the DTMF code stream information that called subscriber sends, send DTMF code stream information according to described called subscriber, regulate the volume of the first color speech background sound, or, suspend or start the first color speech background sound, or, open or close the first color speech background sound.
It is preferred that described media processing units is further used for:
Receive the INVITE carrying Calling Side media address information that calling subscribe sends, and the diversiform telephone services mark judgement preset according to described calling subscribe or called subscriber is when need not provide diversiform telephone services, the 3rd media address information is determined just for described calling subscribe, reserved the 3rd media resource comprising described 3rd media address information, and described INVITE is sent directly to described called subscriber;And,
Receive 183 message carrying callee side media address information that described called subscriber sends, and when need not provide diversiform telephone services according to the mark judgement of described diversiform telephone services, described 183 message are sent directly to described calling subscribe;
Receive described called subscriber send for indicating described called subscriber to be in 180 message of ringing condition, and when need not provide diversiform telephone services according to the mark judgement of described diversiform telephone services, the first UPDATE message carrying described 3rd media address information is sent to described calling subscribe, to notify that the media address information of far-end is changed to described 3rd media address information by described calling subscribe, and, after receiving the 200OK message carrying Calling Side media address information that described calling subscribe returns, described 180 message and CRBT tone data are sent to described calling subscribe, realize the CRBT tone data interaction between described calling subscribe and described color ring platform;
Color ring platform determines described called subscriber answer, and when need not provide diversiform telephone services according to the mark judgement of described diversiform telephone services, the second UPDATE message carrying described callee side address information is sent to described calling subscribe, to notify that the media address information of far-end is changed to described callee side media address information by described calling subscribe, it is achieved the speech data between described calling subscribe and described called subscriber is mutual.
Accompanying drawing explanation
Fig. 1 is the business process map realizing color speech in the embodiment of the present invention;
Fig. 2 is the traffic signaling flow chart realizing color speech in the embodiment of the present invention;
Fig. 3 is CRBT platform structure figure in the embodiment of the present invention.
Detailed description of the invention
The embodiment of the present invention devises a kind of method and device realizing diversiform telephone services based on color ring platform, by the Long Term Evolution speech business (VoiceoverLongTermEvolution in 3-G (Generation Three mobile communication system), Volte) in call environment, after polyphonic ringtone playing completes, judged whether to need to continue to provide diversiform telephone services by color ring platform, if, then by change signaling traffic flow process, conversate description agreement (SessionDescriptionProtocol to calling and called, SDP) consult, continue to stay in the communication process of calling and called by the media module of color ring platform, and diversiform telephone services function is provided;Otherwise, after calling and called are conversed, the media module of color ring platform will depart from from speech channel.So, when can realize there is no diversiform telephone services when only Ring Back Tone service, color ring platform is departed from from calling procedure, reduce the wasting of resources, and individually calling and called can be mixed into background sound, receiving the independent control of calling and called, operation flow is the most independent, provides possible for realizing follow-up business multiformity.
Below in conjunction with the accompanying drawings embodiment of the present invention preferred embodiment is described in detail.
The embodiment of the present invention is introduced as a example by Volte call environment, and along with the continuous maturation of Volte technology, color ring platform can provide Ring Back Tone service function to calling subscribe in calling procedure.
Calling subscribe is after dialing called subscriber, first pass through core net media server (TelephonyApplicationServer, TAS) judge whether called subscriber contracts Ring Back Tone service, if, the INVITE then calling subscribe received sent adds route (i.e. ROUTE) head, routes the call to color ring platform.
Refering to shown in Fig. 1, in the embodiment of the present invention, the process realizing diversiform telephone services based on color ring platform is as follows:
Step 100: color ring platform receives request (i.e. INVITE) message carrying Calling Side media address information that calling subscribe sends, and the diversiform telephone services mark judgement preset according to calling subscribe or called subscriber is when needing to provide diversiform telephone services, it is the first media address information that called subscriber determines that the Calling Side media address information carried by this INVITE changes to color ring platform side, and sends this INVITE to called subscriber.
Specifically, color ring platform sets up diversiform telephone services mark for the number opening diversiform telephone services in advance, and be managed collectively by data base, after receiving the INVITE that calling subscribe sends, first data base is inquired about, the diversiform telephone services mark preset according to calling subscribe or called subscriber, it is judged that whether calling subscribe or called subscriber open diversiform telephone services.
In actual applications, different settings can be carried out according to the administrative mechanism of operator, such as, if calling subscribe opens diversiform telephone services, then in communication process, provide the broadcasting of background sound to called subscriber, if called subscriber opens diversiform telephone services, then in communication process, the broadcasting of background sound is provided to calling subscribe, it is also possible to, no matter calling subscribe or called subscriber either party opened diversiform telephone services, in communication process, the broadcasting of background sound can be provided to both sides.In the embodiment of the present invention, illustrate for last a kind of situation, i.e. calling subscribe or called subscriber either party open diversiform telephone services, both sides can enjoy color speech function.Color ring platform, after receiving the INVITE that calling subscribe sends, only need to identify according to diversiform telephone services, it is judged that calling subscribe or called subscriber either party open diversiform telephone services, it is necessary to provide color speech exploit to be engaged in energy in communication process.
Color ring platform is for the need of providing diversiform telephone services to perform different operations respectively:
If color ring platform determines needs to provide diversiform telephone services, then need a reserved media resource towards Calling Side, reserve a media resource towards callee side simultaneously, this media resource comprises the information such as media address.The media address information of the Calling Side in the SDP that the INVITE receiving calling subscribe's transmission is carried by color ring platform preserves, and the media address information in this SDP changes to color ring platform side is the media address information (can be designated as the first media address information) that called subscriber determines, the INVITE carrying this first media address information is sent to called subscriber, so, it is its media address information determined that distant end media address information can be set to color ring platform side by called subscriber, i.e., it is possible to send media stream data to color ring platform side.
If color ring platform judges to need not provide diversiform telephone services, the most only reserve a media resource towards Calling Side, the INVITE that the calling subscribe received sends is sent directly to called subscriber, so, owing to carrying the media address information of self in the INVITE that calling subscribe sends, therefore, called subscriber is after receiving this INVITE, distant end media address information can be set to the media address information of Calling Side, media stream data can be sent to calling subscribe.
Step 110: color ring platform receives 183 message carrying callee side media address information that called subscriber sends, when needing to provide diversiform telephone services according to the mark judgement of this diversiform telephone services, it is the second media address information that calling subscribe determines that the callee side media address information this 183 message carried changes to color ring platform, and sends this 183 message to calling subscribe.
Specifically, color ring platform receives 183 message that called subscriber returns, the information such as the media address information and the media coding type that carry callee side in this 183 message, color ring platform continues to determine whether to need to provide diversiform telephone services, and perform different processing modes according to judged result, specific as follows:
If color ring platform judges to need to provide diversiform telephone services, then the media address information etc. carrying the callee side in SDP in this 183 message is preserved, and the media address information that this 183 message is carried in SDP changes to color ring platform is the media address information (can be designated as the second media address information) that calling subscribe determines, 183 message carrying the second media address information are sent to calling subscribe, so, it is its media address information determined that distant end media address information can be set to color ring platform side by calling subscribe, i.e., media stream data can be sent to color ring platform side, owing to early stage color ring platform record has the media address information of Calling Side, therefore, so far media access is had been set up between calling subscribe and color ring platform, can interactive media flow data.
If color ring platform judges to need not provide diversiform telephone services, then 183 message that the called subscriber received sends are sent directly to called subscriber, so, owing to 183 message that called subscriber sends being carried the media address information of self, therefore, distant end media address information, after receiving this 183 message, can be set to the media address information of callee side, can send media stream data to called subscriber by calling subscribe.So far, have been set up media access between calling subscribe and called subscriber, can interactive media flow data.
Step 120: color ring platform receive called subscriber send after indicating called subscriber to be in 180 message of ringing condition, when needing to provide diversiform telephone services according to diversiform telephone services mark judgement, 180 message are sent directly to described calling subscribe, and send CRBT tone to calling subscribe.
Specifically, color ring platform receives 180 message being used for indicating called subscriber to be in ringing condition of called subscriber's transmission, continues to determine whether to need to provide diversiform telephone services according to default diversiform telephone services mark, operation below concrete execution:
If color ring platform judges to need to provide diversiform telephone services, owing to now calling subscribe and establishes media access between color ring platform, therefore this 180 message received directly is sent to calling subscribe by color ring platform, subscriber call now called subscriber is in ringing phase, and sends CRBT tone to calling subscribe simultaneously;
If color ring platform judges to need not provide diversiform telephone services, owing to now calling subscribe and called subscriber establish media access, therefore color ring platform need between elder generation and calling subscribe, to carry out media negotiation could be to calling subscribe's coloring ring back tone playing.Specifically, this 180 message is not first sent to calling subscribe by color ring platform, but send renewal (i.e. UPDATE message to calling subscribe, the first UPDATE message can be designated as), the media address information of CRBT side is carried, in order to subscriber call by the media address information that media address information updating is CRBT side of far-end in the first UPDATE message.Color ring platform continues to the 200OK message of the media address information carrying Calling Side that calling subscribe returns, confirm that the media address information of its far-end has been changed to the media address information of color ring platform side by calling subscribe, so, color ring platform can and calling subscribe between set up media access, can interactive media flow data.Then, color ring platform continues to send this 180 message to calling subscribe, and subscriber call now called subscriber has been in ringing phase, sends CRBT tone to calling subscribe simultaneously.
Step 130: when color ring platform determines called subscriber answer and needs to provide diversiform telephone services according to diversiform telephone services mark judgement, when receiving the first speech data that calling subscribe sends according to the second media address information, first speech data and the first color speech background sound data are carried out mixing operation and send to called subscriber, or, when receiving the second speech data that called subscriber sends according to the first media address information, second speech data and the second color speech background sound data are carried out mixing operation and send to calling subscribe.
Specifically, color ring platform is after receiving the 200OK message that called subscriber sends, it may be determined that called subscriber has picked up, now, color ring platform stops sending CRBT tone to calling subscribe, and continues according to whether provide diversiform telephone services to perform different operations respectively:
If color ring platform judges to need to provide diversiform telephone services, then the media module of color ring platform continues to stay in talk path, owing to early stage color ring platform respectively and establishes media access between calling and called user, the most now color ring platform is made without media negotiation, respectively can and calling subscribe and called subscriber between carry out the mutual of media stream data.The 200OK message that the called subscriber received sends directly is sent by color ring platform to calling subscribe, subscriber call now called subscriber have picked up, color ring platform receive calling subscribe feedback ACK message after, calling subscribe can and called subscriber between carry out normal talking;
If color ring platform judges to need not provide diversiform telephone services, then the media module of color ring platform needs to depart from from talk path, owing to early stage color ring platform is in order to calling subscribe's coloring ring back tone playing, the distant end media address information of calling subscribe is modified, therefore to the talk path built between calling subscribe and called subscriber, now color ring platform sends UPDATE information (can be designated as the 2nd UPDATE information) to calling subscribe again, the media address information of far-end is changed to the media address information of callee side by instruction calling subscribe, color ring platform receives the 200OK message that calling subscribe sends, so far, media address information between calling subscribe and called subscriber has exchanged successfully, the media module that i.e. can walk around color ring platform directly carries out the mutual of media stream data.Then, the 200OK message that the response that the called subscriber received before sends is had picked up by color ring platform sends to calling subscribe, subscriber call is the most called to be had picked up, color ring platform receive calling subscribe feedback ACK message after, calling subscribe can and called subscriber between carry out normal talking.
After calling subscribe and called subscriber can carry out normal talking, the call flow of early stage is complete.
If this time call needs to provide diversiform telephone services, the background sound data (can be described as the first background sound data) that the speech data (can be described as the first speech data) that then color ring platform reception calling subscribe sends and this call need to play to called subscriber carry out mixing operation, and the data after audio mixing are sent to called subscriber, after receiving the speech data (can be described as second speech data) that called subscriber sends, the background sound data (can be described as the second background sound data) playing to calling subscribe are needed to carry out mixing operation second speech data and this call, and the data after audio mixing are sent to calling subscribe.So, color ring platform is respectively for calling subscribe, after the call path setting of called subscriber, the flexible operation of multiple business can be realized, such as, background sound data identical with second speech data employing for first speech data can be carried out audio mixing (the i.e. first background sound data are identical with the second background sound data), realize calling subscribe and share background music with called subscriber, certainly, can also be respectively directed to the first speech data uses different background sound data to carry out audio mixing (the i.e. first background sound data are different with the second background sound data) from second speech data, realize calling subscribe and enjoy different background musics from called subscriber.
Additionally, color ring platform is between calling subscribe and called subscriber during interactive voice data, color ring platform opens dual-tone multifrequency (DualToneMultiFrequency, DTMF) detection, when receiving the DTMF code stream information of calling subscribe or called subscriber's transmission, according to this DTMF code stream information, color speech background sound is performed the most operation associated.When receiving the DTMF code stream information that calling subscribe sends, according to this DTMF code stream information, regulate the volume of the second color speech background sound, or, suspend or start the second color speech background sound, or, open or close the second color speech background sound;When receiving the DTMF code stream information that called subscriber sends, according to this DTMF code stream information, regulate the volume of the first color speech background sound, or, suspend or start the first color speech background sound, or, open or close the first color speech background sound.
Specifically, in communication process, color ring platform receives calling subscribe or called subscriber according to Request for Comment (RequestForComments, RFC) the DTMF code stream information that 2833 agreements send, corresponding execution is operation associated, such as, calling subscribe can close color speech background sound by button 1, can be raised the volume of color speech background sound by button 2.User can also select, by logging in related web site, the background sound oneself liked, and be associated by button, so, can be in communication process, by selecting different buttons to exchange background sound, color ring platform can provide the user identical background sound according to the selection of user, so that calling subscribe and called subscriber enjoy same call situation simultaneously, improve the interest of call, different background sounds can also be provided the user, so that user can enjoy different background musics according to the hobby of oneself, increase the sentiment of call.
After call completes, color ring platform receives calling subscribe or the BYE message of called subscriber's transmission, and uses 200OK message to respond, and terminates this call.
Refering to shown in Fig. 2, in the embodiment of the present invention, it is achieved the signaling process of diversiform telephone services is as follows:
Step 201: color ring platform receives the INVITE carrying Calling Side media address information that calling subscribe sends.
Step 202: color ring platform judges whether to need to provide diversiform telephone services, if, the media address information then specified by SDP in INVITE is revised as the first media address information of color ring platform side, this first media address information be color ring platform side be the media address information that called subscriber determines;Otherwise, this INVITE is sent directly to called subscriber.
Step 203: after called subscriber receives INVITE, is sent information such as the media address information of callee side and the media coding types of self to color ring platform by 183 message.
Step 204: after color ring platform receives this 183 message, judge whether to need to provide diversiform telephone services, if, then preserve the media address information of callee side, and the media address information in this 183 message is revised as the second media address information of color ring platform side, this second media address information be color ring platform side be the media address information that calling subscribe determines;Otherwise, this 183 message is sent directly to calling subscribe.
Step 205: after called subscriber's ring, sends 180 message to color ring platform, and color ring platform called subscriber is already at ringing phase for notice.
Step 206: after color ring platform receives this 180 message, it may be judged whether need to provide diversiform telephone services, the most then perform step 209;Otherwise, step 207 is performed.
Step 207: send UPDATE message to calling subscribe, carries in this UPDATE message, and Media Stream addresses information is appointed as the media address information of CRBT side.
Step 208: calling subscribe responds to color ring platform feedback 200OK message, confirms the media address information of far-end to have been changed to the media address information of color ring platform side.
Step 209: 180 message receiving called subscriber's transmission are sent by color ring platform to calling subscribe, and subscriber call now called subscriber has been in ringing phase, and has commenced play out CRBT to calling subscribe.
Step 210: after called subscriber answers, called subscriber sends the 200OK response of INVITE to color ring platform, and notice color ring platform called subscriber have picked up.
Step 211: color ring platform stop playing coloring ring back tone, and judge whether to need to provide diversiform telephone services, the most simultaneously perform step 214;Otherwise, step 212 is performed.
Step 212: color ring platform resends UPDATE message, carries the media address information of callee side in this UPDATE message.
Step 213: calling subscribe responds to color ring platform feedback 200OK message, shows the media address information of far-end to be changed to the media address information of callee side.
Step 214: color ring platform sends the 200OK response of the INVITE that the called subscriber received sends to calling subscribe, and subscriber call now called subscriber have picked up.
Step 215: calling subscribe responds to color ring platform feeding back ACK message.
Step 216: the ACK message of reception is forwarded to called subscriber by color ring platform.
Step 217: color ring platform judges whether to need to provide diversiform telephone services, if, then color ring platform the speech data of color speech background sound Yu called subscriber is carried out audio mixing to calling subscribe send, and, the speech data of color speech background sound Yu calling subscribe is carried out audio mixing to called subscriber transmission;Otherwise, calling subscribe carries out the mutual of speech data with called subscriber by network side.
Step 218: color ring platform receives calling subscribe or the BYE message of called subscriber's transmission, terminates this call.
Based on above-described embodiment, refering to shown in Fig. 3, in the embodiment of the present invention, color ring platform includes: media processing units 300 and downmixing unit 310.
Media processing units 300, for receiving the INVITE carrying Calling Side media address information that calling subscribe sends, and the diversiform telephone services mark judgement preset according to calling subscribe or called subscriber is when needing to provide diversiform telephone services, it is the first media address information that called subscriber determines that the Calling Side media address information carried by INVITE changes to color ring platform side, and sends this INVITE to called subscriber;
And, for receiving 183 message carrying callee side media address information that called subscriber sends, when needing to provide diversiform telephone services according to diversiform telephone services mark judgement, it is the second media address information that calling subscribe determines that the callee side media address information this 183 message carried changes to color ring platform side, and sends this 183 message to calling subscribe;
And, for receive called subscriber send after indicating called subscriber to be in 180 message of ringing condition, when needing to provide diversiform telephone services according to diversiform telephone services mark judgement, 180 message are sent directly to calling subscribe, and send CRBT tone to calling subscribe;
Downmixing unit 310, during for determining called subscriber answer and needing to provide diversiform telephone services according to the mark judgement of described diversiform telephone services, when receiving the first speech data that calling subscribe sends according to the second media address information, first speech data and the first color speech background sound data are carried out mixing operation and send to called subscriber, or, when receiving the second speech data that called subscriber sends according to the first media address information, second speech data and the second color speech background sound data are carried out mixing operation and send to calling subscribe.
As such, it is possible to realize the unification of CRBT and diversiform telephone services based on color ring platform, and provide business diversity function, and make operation flow the most independent, and reduce the wasting of resources.
Preferably, Calling Side media address information is changed to before color ring platform is the first media address information that described called subscriber determines by media processing units 300, the first media address information is determined for called subscriber, reserved the first media resource comprising the first media address information, and, the second media address information is determined, reserved the second media resource comprising the second media address information for calling subscribe.
During it is preferred that determine called subscriber answer and need to provide diversiform telephone services according to the mark judgement of described diversiform telephone services, between calling subscribe and called subscriber during interaction data, farther include detector unit 320:
For opening dual tone multi-frequency dtmf detection, when receiving the DTMF code stream information of calling subscribe or called subscriber's transmission, according to DTMF code stream information, color speech background sound is performed the most operation associated.
It is preferred that detector unit 320 color speech background sound is performed corresponding operation associated time, at least perform following operation:
When receiving the DTMF code stream information that calling subscribe sends, according to this DTMF code stream information, regulate the volume of the second color speech background sound, or, suspend or start the second color speech background sound, or, open or close the second color speech background sound;
When receiving the DTMF code stream information that called subscriber sends, according to this DTMF code stream information, regulate the volume of the first color speech background sound, or, suspend or start the first color speech background sound, or, open or close the first color speech background sound.
It is preferred that media processing units 300 is further used for:
After receiving the INVITE carrying Calling Side media address information that calling subscribe sends, if need not provide diversiform telephone services according to default diversiform telephone services mark judgement, then determine the 3rd media address information just for calling subscribe, reserved the 3rd media resource comprising the 3rd media address information, and INVITE is sent directly to called subscriber;And,
After receiving 183 message carrying callee side media address information that called subscriber sends, if need not provide diversiform telephone services according to default diversiform telephone services mark judgement, then 183 message are sent directly to calling subscribe;
Receive when being used for indicating called subscriber be in 180 message of ringing condition and need not provide diversiform telephone services according to the mark judgement of described diversiform telephone services of called subscriber's transmission, the first UPDATE message carrying the 3rd media address information is sent to calling subscribe, to notify that the media address information of far-end is changed to described 3rd media address information by described calling subscribe, and, after receiving the 200OK message carrying Calling Side media address information that calling subscribe returns, 180 message are sent to calling subscribe, and send CRBT tone data to calling subscribe, realize the CRBT tone data interaction between calling subscribe and color ring platform;
After color ring platform determines called subscriber answer, and when need not provide diversiform telephone services according to diversiform telephone services mark judgement, the second UPDATE message carrying callee side address information is sent to calling subscribe, with subscriber call, the media address information of far-end is changed to callee side media address information, it is achieved the speech data between calling subscribe and called subscriber is mutual.
nullIn sum,In the embodiment of the present invention,Color ring platform receives the INVITE carrying Calling Side media address information that calling subscribe sends,And the diversiform telephone services mark judgement preset according to corresponding calling subscribe or called subscriber is when needing to provide diversiform telephone services,It is the first media address information that called subscriber determines that the Calling Side media address information carried by INVITE changes to color ring platform side,And this INVITE is sent to called subscriber,After receiving 183 message carrying callee side media address information that called subscriber sends,When needing to provide diversiform telephone services according to diversiform telephone services mark judgement,It is the second media address information that calling subscribe determines that the callee side media address information 183 message carried changes to color ring platform side,And 183 message are sent to calling subscribe,Receive called subscriber send after indicating called subscriber to be in 180 message of ringing condition,When needing to provide diversiform telephone services according to diversiform telephone services mark judgement,180 message are sent directly to calling subscribe,And send CRBT tone to calling subscribe,When determining called subscriber answer and need to provide diversiform telephone services according to the mark judgement of described diversiform telephone services,When receiving the first speech data that calling subscribe sends according to the second media address information,First speech data and the first color speech background sound data are carried out mixing operation and send to called subscriber,Or,When receiving the second speech data that called subscriber sends according to the first media address information,Second speech data and the second color speech background sound data are carried out mixing operation and send to calling subscribe,So,The unification of CRBT and diversiform telephone services can be realized based on color ring platform,And business diversity function is provided,And make operation flow the most independent,And the minimizing wasting of resources.
Those skilled in the art are it should be appreciated that embodiments of the invention can be provided as method, system or computer program.Therefore, the form of the embodiment in terms of the present invention can use complete hardware embodiment, complete software implementation or combine software and hardware.And, the present invention can use the form at one or more upper computer programs implemented of computer-usable storage medium (including but not limited to disk memory, CD-ROM, optical memory etc.) wherein including computer usable program code.
The present invention is to describe with reference to method, equipment (system) and the flow chart of computer program according to embodiments of the present invention and/or block diagram.It should be understood that can be by the flow process in each flow process in computer program instructions flowchart and/or block diagram and/or square frame and flow chart and/or block diagram and/or the combination of square frame.These computer program instructions can be provided to produce a machine to the processor of general purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device so that the instruction performed by the processor of computer or other programmable data processing device is produced for realizing the device of function specified in one flow process of flow chart or multiple flow process and/or one square frame of block diagram or multiple square frame.
These computer program instructions may be alternatively stored in and can guide in the computer-readable memory that computer or other programmable data processing device work in a specific way, the instruction making to be stored in this computer-readable memory produces the manufacture including command device, and this command device realizes the function specified in one flow process of flow chart or multiple flow process and/or one square frame of block diagram or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make to perform sequence of operations step on computer or other programmable devices to produce computer implemented process, thus the instruction performed on computer or other programmable devices provides the step of the function specified in one flow process of flow chart or multiple flow process and/or one square frame of block diagram or multiple square frame for realization.
Although preferred embodiments of the present invention have been described, but those skilled in the art once know basic creative concept, then these embodiments can be made other change and amendment.So, claims are intended to be construed to include preferred embodiment and fall into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and the modification spirit and scope without deviating from the embodiment of the present invention to the embodiment of the present invention.So, if these amendments of the embodiment of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.

Claims (10)

1. the method realizing diversiform telephone services based on color ring platform, it is characterised in that including:
Color ring platform receives the request INVITE carrying Calling Side media address information that calling subscribe sends, and the diversiform telephone services mark judgement preset according to described calling subscribe or called subscriber is when needing to provide diversiform telephone services, change to described Calling Side media address information after described color ring platform is the first media address information that described called subscriber determines, send described INVITE to described called subscriber;
Color ring platform receives 183 message carrying callee side media address information that described called subscriber sends, and when needing to provide diversiform telephone services according to the mark judgement of described diversiform telephone services, change to described callee side media address information after described color ring platform is the second media address information that described calling subscribe determines, send described 183 message to described calling subscribes;
Color ring platform receive described called subscriber send for indicating described called subscriber to be in 180 message of ringing condition, and when needing to provide diversiform telephone services according to the mark judgement of described diversiform telephone services, described 180 message are sent directly to described calling subscribe, and send CRBT tone to described calling subscribe;
Color ring platform determines described called subscriber answer, and when needing to provide diversiform telephone services according to the mark judgement of described diversiform telephone services, when receiving the first speech data that described calling subscribe sends according to described second media address information, then the data of described first speech data and the first color speech background sound are carried out mixing operation and sends to described called subscriber, or, when receiving the second speech data that described called subscriber sends according to described first media address information, then the data of described second speech data and the second color speech background sound are carried out mixing operation and sends to described calling subscribe.
2. the method for claim 1, it is characterised in that change to described Calling Side media address information before described color ring platform is the first media address information that described called subscriber determines, farther include:
Color ring platform determines the first media address information for described called subscriber, reserved the first media resource comprising described first media address information, and, determine the second media address information for described calling subscribe, reserved the second media resource comprising described second media address information.
3. the method for claim 1, it is characterized in that, described color ring platform determines described called subscriber answer, and when needing to provide diversiform telephone services according to the mark judgement of described diversiform telephone services, between described calling subscribe and described called subscriber during interaction data, farther include:
Color ring platform opens dual tone multi-frequency dtmf detection, when receiving the DTMF code stream information of described calling subscribe or described called subscriber transmission, according to described DTMF code stream information, performs the most operation associated to color speech background sound.
4. method as claimed in claim 3, it is characterised in that described color speech background sound is performed corresponding operation associated time, at least perform following operation:
When receiving the DTMF code stream information that described calling subscribe sends, the DTMF code stream information sent according to described calling subscribe, regulate the volume of described second color speech background sound; or; suspend or start described second color speech background sound, or, open or close described second color speech background sound;
When receiving the DTMF code stream information that described called subscriber sends, the DTMF code stream information sent according to described called subscriber, regulate the volume of described first color speech background sound; or; suspend or start described first color speech background sound, or, open or close described first color speech background sound.
5. the method as described in any one of claim 1-4, it is characterised in that farther include:
Color ring platform receives the INVITE carrying Calling Side media address information that calling subscribe sends, and the diversiform telephone services mark judgement preset according to described calling subscribe or called subscriber is when need not provide diversiform telephone services, the 3rd media address information is determined just for described calling subscribe, reserved the 3rd media resource comprising described 3rd media address information, and described INVITE is sent directly to described called subscriber;
Color ring platform receives 183 message carrying callee side media address information that described called subscriber sends, and when need not provide diversiform telephone services according to the mark judgement of described diversiform telephone services, described 183 message is sent directly to described calling subscribe;
Color ring platform receives 180 message being used for indicating described called subscriber to be in ringing condition that described called subscriber sends, and when need not provide diversiform telephone services according to the mark judgement of described diversiform telephone services, the the first renewal UPDATE message carrying described 3rd media address information is sent to described calling subscribe, to notify that the media address information of far-end is changed to described 3rd media address information by described calling subscribe, and, after receiving the 200OK message carrying Calling Side media address information that described calling subscribe returns, described 180 message and CRBT tone data are sent to described calling subscribe, realize the CRBT tone data interaction between described calling subscribe and described color ring platform;
Color ring platform determines described called subscriber answer, and when need not provide diversiform telephone services according to the mark judgement of described diversiform telephone services, the second UPDATE message carrying described callee side address information is sent to described calling subscribe, to notify that the media address information of far-end is changed to described callee side media address information by described calling subscribe, it is achieved the speech data between described calling subscribe and described called subscriber is mutual.
6. the device realizing diversiform telephone services based on color ring platform, it is characterised in that including:
Media processing units, for receiving the request INVITE carrying Calling Side media address information that calling subscribe sends, and the diversiform telephone services mark judgement preset according to calling subscribe or called subscriber is when needing to provide diversiform telephone services, change to described Calling Side media address information after described color ring platform is the first media address information that described called subscriber determines, send described INVITE to described called subscriber;
And, for receiving 183 message carrying callee side media address information that described called subscriber sends, and when needing to provide diversiform telephone services according to the mark judgement of described diversiform telephone services, change to described callee side media address information after described color ring platform is the second media address information that described calling subscribe determines, send described 183 message to described calling subscribes;
And, for receive described called subscriber send for indicating described called subscriber to be in 180 message of ringing condition, and when needing to provide diversiform telephone services according to the mark judgement of described diversiform telephone services, described 180 message are sent directly to described calling subscribe, and send CRBT tone to described calling subscribe;
Downmixing unit, for determining described called subscriber answer, and when needing to provide diversiform telephone services according to the mark judgement of described diversiform telephone services, when receiving the first speech data that described calling subscribe sends according to described second media address information, then the data of described first speech data and the first color speech background sound are carried out mixing operation and sends to described called subscriber, or, when receiving the second speech data that described called subscriber sends according to described first media address information, then the data of described second speech data and the second color speech background sound are carried out mixing operation and sends to described calling subscribe.
7. device as claimed in claim 6, it is characterized in that, described Calling Side media address information is being changed to before described color ring platform is the first media address information that described called subscriber determines by described media processing units, it is further used for determining the first media address information for described called subscriber, reserved the first media resource comprising described first media address information, and, the second media address information is determined, reserved the second media resource comprising described second media address information for described calling subscribe.
8. device as claimed in claim 6, it is characterised in that after determining described called subscriber answer, between described calling subscribe and described called subscriber during interaction data, described device farther includes:
Detector unit, is used for opening dual tone multi-frequency dtmf detection, when receiving the DTMF code stream information of described calling subscribe or described called subscriber transmission, according to described DTMF code stream information, performs the most operation associated to color speech background sound.
9. device as claimed in claim 8, it is characterised in that described detector unit color speech background sound is performed corresponding operation associated time, at least perform following operation:
When receiving the DTMF code stream information that described calling subscribe sends, the DTMF code stream information sent according to described calling subscribe, regulate the volume of described second color speech background sound; or; suspend or start described second color speech background sound, or, open or close described second color speech background sound;
When receiving the DTMF code stream information that described called subscriber sends, the DTMF code stream information sent according to described called subscriber, regulate the volume of described first color speech background sound; or; suspend or start described first color speech background sound, or, open or close described first color speech background sound.
10. the device as described in any one of claim 6-9, it is characterised in that described media processing units is further used for:
Receive the INVITE carrying Calling Side media address information that calling subscribe sends, and the diversiform telephone services mark judgement preset according to described calling subscribe or called subscriber is when need not provide diversiform telephone services, the 3rd media address information is determined just for described calling subscribe, reserved the 3rd media resource comprising described 3rd media address information, and described INVITE is sent directly to described called subscriber;And,
Receive 183 message carrying callee side media address information that described called subscriber sends, and when need not provide diversiform telephone services according to the mark judgement of described diversiform telephone services, described 183 message are sent directly to described calling subscribe;
Receive described called subscriber send for indicating described called subscriber to be in 180 message of ringing condition, and when need not provide diversiform telephone services according to the mark judgement of described diversiform telephone services, the first UPDATE message carrying described 3rd media address information is sent to described calling subscribe, to notify that the media address information of far-end is changed to described 3rd media address information by described calling subscribe, and, after receiving the 200OK message carrying Calling Side media address information that described calling subscribe returns, described 180 message and CRBT tone data are sent to described calling subscribe, realize the CRBT tone data interaction between described calling subscribe and described color ring platform;
Color ring platform determines described called subscriber answer, and when need not provide diversiform telephone services according to the mark judgement of described diversiform telephone services, the second UPDATE message carrying described callee side address information is sent to described calling subscribe, to notify that the media address information of far-end is changed to described callee side media address information by described calling subscribe, it is achieved the speech data between described calling subscribe and described called subscriber is mutual.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111416910A (en) * 2019-01-07 2020-07-14 ***通信有限公司研究院 Interactive method and device for realizing color ring back tone service
CN114979373A (en) * 2021-09-07 2022-08-30 中移互联网有限公司 Call realization method and device for intermediate number service and electronic equipment

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101043647A (en) * 2007-03-13 2007-09-26 华为技术有限公司 Method, system and apparatus for realizing multimedia color bell and multimedia color image service
CN101330750A (en) * 2007-08-03 2008-12-24 中兴通讯股份有限公司 Method for simultaneously playing multimedia information for call subscriber and called subscriber
CN103826210A (en) * 2012-11-16 2014-05-28 中兴通讯股份有限公司 Coloring ring back tone service realizing method and coloring ring back tone service system
CN104105080A (en) * 2014-06-26 2014-10-15 中兴通讯股份有限公司 Video media playing method, device and system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101043647A (en) * 2007-03-13 2007-09-26 华为技术有限公司 Method, system and apparatus for realizing multimedia color bell and multimedia color image service
CN101330750A (en) * 2007-08-03 2008-12-24 中兴通讯股份有限公司 Method for simultaneously playing multimedia information for call subscriber and called subscriber
CN103826210A (en) * 2012-11-16 2014-05-28 中兴通讯股份有限公司 Coloring ring back tone service realizing method and coloring ring back tone service system
CN104105080A (en) * 2014-06-26 2014-10-15 中兴通讯股份有限公司 Video media playing method, device and system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111416910A (en) * 2019-01-07 2020-07-14 ***通信有限公司研究院 Interactive method and device for realizing color ring back tone service
CN111416910B (en) * 2019-01-07 2021-08-06 ***通信有限公司研究院 Interactive method and device for realizing color ring back tone service
CN114979373A (en) * 2021-09-07 2022-08-30 中移互联网有限公司 Call realization method and device for intermediate number service and electronic equipment
CN114979373B (en) * 2021-09-07 2023-09-19 中移互联网有限公司 Call realization method and device for middle number service and electronic equipment

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