CN100433677C - Method for realizing networked phone, and device of networked phone - Google Patents
Method for realizing networked phone, and device of networked phone Download PDFInfo
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- CN100433677C CN100433677C CNB2004100532885A CN200410053288A CN100433677C CN 100433677 C CN100433677 C CN 100433677C CN B2004100532885 A CNB2004100532885 A CN B2004100532885A CN 200410053288 A CN200410053288 A CN 200410053288A CN 100433677 C CN100433677 C CN 100433677C
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Abstract
The present invention discloses a method for realizing network phones, and a device of network phones, which aims to provide the method for realizing network phones and the device of network phones based on address detection. The method for realizing network phones comprises: a network phone terminal and a computer terminal share an IP address of a public network. The device of network phones comprises a network processor and a phone processor, wherein the network processor and the phone processor are connected; the phone processor, the network processor and the downstream device share the IP address of the public network. The network processor is used for carrying out address detection and shunt forwarding for data packets which come from the public network. A transmission protocol which comprises the registration of the phone processor and the data packets of the address are forwarded to the phone processor. The rest data packets are transmitted to the connected downstream device. The network processor is used for receiving and transmitting the data packets which come from the downstream device and the phone processor to the public network. The phone processor realizes the control function of an IP phone, coding and decoding of voice and phone control, and also realizes data packet transmission with the network processor.
Description
Technical field
The present invention relates to a kind of relating to, especially relate to a kind of method and internet phone device of realizing the networking telephone based on the wideband telephony communication technology of computer network route detection with bypass technology.
Background technology
At present, broadband access is the development trend of modern communications, and a large amount of individual families and company have all implemented broadband access (comprising xDSL, Cable Modern, FTTB+LAN or the like).For the personal user, increasing user has adopted access via telephone line mode in unlimited time; For corporate user, realized in most companies that the LAN port is to the seat; The network of these accesses possesses rich more bandwidth and transmittability with respect to traditional speech special circuit.
IP phone (IP Phone) is a kind of emerging voice communication technology that is based upon on the TCP/IP network, is to enrich the importance that computer network is used.Existing IP phone is used and is concentrated on two aspects:
The one, carry out speech, Image Communication between the computer by the voice communication software on the personal computer.But the enforcement of this magic letter mode depends on several necessary conditions, comprise that both sides' computer has all inserted computer network, all start shooting, all moved the Speech Communication software of mutual coupling, both sides' computer has all been installed microphone and audio amplifier, know IP address of the other side or the like each other, this all too many levels has hindered the carrying out by the talking mode of computer;
To be PSTN plain old telephone terminal make the IP telephony network pass pull out mutually to cry by dialling another kind.This mode has mainly adopted the IP correlation technique at local side, but the user still inserts by ordinary telephone line, must obtain the telephone number that telecommunication bureau distributes, resolve group number that cries and finish the phone access by access server, the broadband access network of this communication mode and user installation does not have direct relation, can not utilize the advantage of the flexible and big bandwidth that broadband access brings.
In addition, though also develop the multimedia telephone terminal that some adopt broadband interface on the market, but IP address that it need be monopolized and physical network interface and often need special connection server, concerning the personal user, taken precious public network IP address resources, can't realize sharing of IP address, make its application unactual; Concerning the enterprise customer, be necessary for phone and distribute special LAN port, increase equipment and dropped into expense.
Consideration is based on the telephone communication essence of computer network: one, and itself has addressability IP network; Two, in idle condition, voice communication terminal (or program) is just applied for and is monitored one or certain several fixing public port, initiated or the receipt of call request by this port when needs are communicated by letter, and the TCP or the UDP that dynamically set up based on new port according to the agreement protocol of communicating pair communicates to connect; Work as sign off, discharge the communication port of communication process application, get back to initial condition.Therefore, for realizing that personal communication based on IP network takies a complete IP address and an all of the port fully and wastes very much, the use cost of bringing is also very high.
Summary of the invention
The objective of the invention is to above-mentioned deficiency, propose a kind of networking telephone implementation method and internet phone device, realize the conllinear transmission of mediaphone and computer network communication based on address detected at prior art.
Above-mentioned purpose of the present invention is achieved through the following technical solutions: a kind of method that realizes the networking telephone, link to each other with public network by a network processing unit Upstream Interface, one interface of network processing unit links to each other with upstream device, one interface links to each other with telephone processor, telephone processor connects networking telephone ancillary equipment, the IP address of the public network of the upstream device shared network processor Upstream Interface that described telephone processor is connected with described network processing unit; Packet from public network is carried out address detected with described network processing unit and shunting is transmitted, to comprise the host-host protocol of telephone processor registration and the packet of address and be transmitted to described telephone processor, give upstream device with other data packet transmission, described network processing unit receives from the packet of described upstream device and described telephone processor and sends public network to; Described telephone processor is realized the encoding and decoding and the phone control of IP phone controlled function, speech, and the packet between realization and the described network processing unit transmits.
A kind of internet phone device comprises network processing unit and telephone processor, and described network processing unit links to each other with described telephone processor; Described network processing unit is provided with the network interface and the downstream interface that is connected upstream device that connects public network, described telephone processor links to each other with phone ancillary equipment, the public network IP address that distributes on the upstream device shared network processor that described telephone processor is connected with described network processing unit; Packet from public network is carried out address detected with described network processing unit and shunting is transmitted, to comprise the host-host protocol of telephone processor dynamic registration and the packet of address and be transmitted to described telephone processor, to being attached thereto upstream device, described network processing unit receives from the packet of described upstream device and described telephone processor and sends public network to other data packet transmission; Described telephone processor is realized the coding and decoding and the phone control of IP phone controlled function, speech, and can realize and described network processing unit between the packet transmission.
Also comprise the expanded application module, described expanded application module links to each other with described telephone processor, and is provided with several expanded application interfaces; Also comprise local net exchange equipment or line concentration equipment, described local net exchange equipment (or line concentration equipment) end links to each other with the downstream interface of described network processing unit, and the other end is provided with the interface (this moment, upstream device was not shared public network IP address with the network equipment) that connects several upstream devices.
A kind of network phone system comprises the webserver, telephony server, LAN switch and some cover internet phone devices; The described webserver links to each other with described LAN switch with described telephony server, the described webserver is provided with the network interface that connects public network, the described webserver will carry out address detected from the packet of public network and shunting is transmitted, to comprise the host-host protocol of telephony server registration and the packet of address and be transmitted to described telephony server, other packet is transferred to the described LAN switch that is attached thereto according to Routing Protocol after address transition, the described webserver sends public network to the packet from described telephony server and described LAN switch to according to Routing Protocol after address transition; Described telephony server links to each other with described LAN switch with the described webserver, described telephony server inserts request (showing as network packet) and continues and the exchange signaling transfer point changeing public network phone from the described webserver, finishes network communication repeating function between the network telephone plant of outer public network phone of the described webserver and described LAN switch; During the conversation, described telephony server will send described LAN switch to through address transition from the packet of the described webserver, will send the described webserver to from the phone related data packets of described LAN switch; Described LAN switch links to each other with described telephony server with the described webserver, and connect described some cover internet phone devices, described LAN switch is finished the network switch function of standard, described some cover internet phone devices will be sent from the packet of the described webserver and described telephony server to, the described webserver and described telephony server will be sent to from the packet of described some cover internet phone devices; Described internet phone device comprises network processing unit and telephone processor, described network processing unit upstream one end connects described LAN switch, the downstream other end is provided with the interface that connects terminal, described telephone processor one end connects described network processing unit, the other end is provided with the interface that connects phone ancillary equipment, the IP address of the terminal computer equipment shared network processor Upstream Interface that described telephone processor is connected with described network processing unit, packet from described LAN switch is carried out address detected with described network processing unit and shunting is transmitted, to comprise the host-host protocol of telephone processor registration and the packet of address and be transmitted to described telephone processor, give the terminal computer equipment that is attached thereto with other data packet transmission, described network processing unit receives from the packet of described terminal computer equipment and described telephone processor and sends described LAN switch to; Described telephone processor is realized the coding and decoding and the phone control of IP phone controlled function, speech, and can realize and described network processing unit between the packet transmission; The described telephony server and the described webserver are shared the IP address of public network, and the terminal that the telephone processor of described internet phone device is connected with the network processing unit downstream is shared the LAN IP address that distributes; To described telephony server in the local area network (LAN) and the described webserver, described some cover internet phone devices, be assigned LAN IP address respectively.
Described LAN switch sends another internet phone device according to address that packet comprises to the packet (comprising the phone related data packets) from a certain cover internet phone device; Described telephony server has the local area network (LAN) implicit IP address, shares same public network IP address by the nat feature and the enterprise Web server of the webserver simultaneously; Described telephony server is provided with the black phone network interface, described telephony server is accepted the call request from the traditional electrical phone network, finish switching to the inner networking telephone function that continues, and will be converted to the IP voice packets from the voice signal of traditional telephone network and send described LAN switch to and send a certain particular network telephone plant to by it, the packet of dialing the black phone network users from described some cover internet phone devices sends described telephony server to by described LAN switch, and is transferred to the traditional electrical phone network by described telephony server.
Compare with prior art, the present invention has following beneficial effect: this programme has been realized the realization of IP phone based on computer network with minimum cost, and promptly transmission and addressing part increases special-purpose telephone terminal based on the common computer network at the network terminal; Because upstream device and telephone processor and network processing unit share I P address so do not need to carry out address transition, have improved efficiency of transmission; Realized not relying on the minimum VOIP systems approach of public network third-party server simultaneously.The personal user has been realized making full use of public network IP address resources; For the enterprise customer, then saved hardware lan port cost input, make Speech Communication become possibility based on local area network (LAN).
Description of drawings
Fig. 1 is internet phone device basic principle figure of the present invention;
Fig. 2 is that internet phone device of the present invention is used for individual unit user schematic diagram;
Fig. 3 is that internet phone device of the present invention is used for the multicomputer mininet user of family schematic diagram;
Fig. 4 is that internet phone device of the present invention is used for enterprise clusters user schematic diagram.
Wherein, 1 is network processing unit; 2 is telephone processor; 3 is the LAN side interface: 4 are the WAN side interface; 5 is the telephone set peripheral circuit: 6 are the expanded application interface; 7 is network access module; 8 is lan switch; 9 is the webserver; 10 is telephony server; 11 is the black phone interface; 12 is LAN switch: 13 are internet phone device.
Embodiment
Below in conjunction with drawings and Examples the present invention is further described.
As shown in Figure 1, a network processing unit 1 is responsible for the access of outer net, and it has two physical interfaces to connect telephone processor 2 and computer application (LAN network interface or switch etc.) respectively; The detection of the packet that network processing unit 1 is responsible for passing through give telephone processor 2 with the packet relevant with phone, and other packet is sent to the computer application direction; Telephone processor 2 is finished the IP phone controlled function, the coding and decoding of speech and phone control.Wherein network processing unit 1 and telephone processor 2 are concept of function, can be according to device disposal ability and load estimation, and both functional definitions of being responsible for of flexible allocation, even be completely integrated on the hardware processor and finish.
As shown in Figure 2, to individual unit user, its situation about facing is to have only the IP address of the fixing or dynamic assignment of a computer network interface and, therefore needs low cost, realizes that phone, computer realization IP share.
At this moment, form by network processing unit 1, telephone processor 2 and telephone set peripheral circuit 5 (comprising telephone keypad, display, microphone or the like) that WAN side interface 4 and LAN side interface 3, the detection of realization packet and multiple access are transmitted, increased expanded application interface 6 in order to expand the phone application function, in order to reduce cost of access, to simplify cut-in method, network access module 7 can also be integrated among the present invention.
IP distributes on each module: this moment is because have only a downstream computer network interface, so the computer that telephone processor 2 is connected with the downstream can 4 IP address allocated of all shared WAN side interface; Network processing unit 1 feels it is transparent concerning these two equipment, reach the attached and network processing unit 1 in address concerning WAN, but concerning computer and telephone processor 2, they think that this IP is attached to oneself, and this function is finished dealing with especially by network processing unit 1.
Information process:
1, other IP phone (or phone application) on the WAN is dialed this equipment phone: initiate connection request by the acquiescence listening port to equipment WAN side interface 4 by caller; WAN side interface 4 is accepted to pass to network processing unit 1 behind this packet; 1 pair of packet destination address of network processing unit (comprising TCP or udp port) detects, and discovery is and the phone related data packets, so transmit to telephone processor 2; Telephone processor 2 is received the phone connection request from network processing unit 1, feedback response signal (delivering to network processing unit 1); Network processing unit 1 returns to the calling subscriber to this response by WAN side interface 4, has therefore set up the calling control connection; In the process of calling and called Signalling exchange, both sides can set up new communication port with information such as voice-over, images according to agreement, the port information newly opened is delivered to network processing unit 1 by telephone processor 2 simultaneously, will being that the data of importing into of destination address are transmitted to telephone processor 2 equally with these ports in network processing unit 1 registration; Telephone processor 2 is gone up the process of Signalling exchange according to IP, and control telephone set peripheral circuit 5 finishes ring, monitoring off-hook, disconnected ringing-current, shows caller ID, to the decoding of IP voice packets and be converted to analog signal and send receiver to, obtain microphone information or the like; End of conversation, telephone processor 2 discharge all dynamically ports of application, and the detection application of nullifying these ports to network processing unit 1, and network processing unit 1 recovers the computer user that the packet that these ports are relevant is transmitted to acquiescence.
2, this device network phone dials network telephone do caller: telephone set peripheral circuit 5 detects the phone off hook signal, notice telephone processor 2, and telephone processor 2 control telephone set peripheral circuits 5 send dialing tone and begin to obtain group number that cries to the user; Telephone set peripheral circuit 5 sends telephone processor 2 to after having obtained dial number, and telephone processor 2 carries out behind the necessary number analysis sending connection request packet to the called phone machine by default port to network processing unit 1; Network processing unit 1 receives that public network is sent in discovery from testing goal address behind the packet of telephone processor 2, so transmit to public network by WAN side interface 4; After telephone set on the WAN or telephony application are received this connection request, beam back the connection response packet by default port; After receiving packet, WAN side interface 4 is given to network processing unit 1; It is thereby that the phone related data packets is transmitted to telephone processor 2 that network processing unit 1 detects this packet; So far calling and called control link is set up, and subsequent voice calls, conversation and terminal procedure no longer repeat with process 1.
3, the outer net Data transmission give last other terminal of computer: WAN by WAN side interface 4 Data transmission bags (generally the port address not can with the Voice Applications data packet collisions) to the computer of this network address; This packet passes to network processing unit 1 by WAN side interface 4; 1 pair of destination address of network processing unit detects, and finds to have nothing to do with telephone communication, then transmits to computer by LAN side interface 3; The computer feedback data packet then is forwarded to network processing unit 1 by LAN interface 3, and network processing unit 1 is directly transmitted to public network by WAN side interface 4 according to its destination address.
4, computer is provided with this equipment: be connected to the default port accesses network processor 1 of the computer of LAN side interface 4 by systemic presupposition; Network processing unit 1 is analyzed the destination address of being initiated requested packets by computer, and discovery is that port is set, and therefore by port is set computer is responded; Because network processing unit 1 and telephone processor 2 are connected by the inner passage, so computer also can be finished the work that is provided with to telephone processor 2 by network processing unit 1.
In order to save personal user's investment to greatest extent, can be broadband access module (such as ADSL, terminal, Cable Modern) be integrated in this system, can carry out necessary setting to access module by the default port of PC by network processing unit 1, can also go up by PC and auxiliary routine is installed is realized functions such as numbering directory management, network telephone auxiliary dial.
As shown in Figure 3, to the multicomputer mininet user of family, the environment that faces is that a WAN address and interface are arranged, but the LAN end has many terminals, these terminals are distributed in the room of 2 ~ 3 intercommunications, the people of a inside network telephone terminal commonly used and the external world carry out phone contact (enough), finish the target that above-mentioned all functions remain pursuit with minimal equipment and investment as far as possible.
At this moment, the networking telephone is still shared the public network IP address that resides on the network processing unit 1, but the LAN port is then replaced by a wired or wireless lan switch 8 (perhaps hub).At this moment, do not see the phone application part, then system becomes the structure that a multicomputer is connected with public network by local area network (LAN) and router, so network processing unit 1 need be finished the function of router.The public network networking telephone still can be dialled and calls on the networking telephone by dialling the public network address be this network; Computer in the local area network (LAN) is then by public network on network processing unit 1 (can be realized by the dedicated router processor) agency, and is inner for each computer distributes different lan addresses, links to each other by lan switch 8 (or hub) between the computer.
IP distributes on each module: telephone processor 2 is shared WAN side IP address allocated with network processing unit 1, so the last telephone subscriber of WAN can dial this networking telephone by directly calling this public network IP; Then setting is assigned as Intranet IP address to lan switch 8 (or hub) inner computer that connects according to internal router.
Information process:
1, WAN network this machine of making call and this machine are dialed the WAN network phone, and processing procedure is identical with preceding method.
2, inner computer then because PC no longer shares WAN side IP address, is finished the access process that be routed to public network by network processing unit 1 to the visit of WAN, and it is consistent that this process and common Intranet user are routed to public network by router.
This implementation pattern is because phone and WAN port are shared worker's P address, so can only there be one to answer terminal.For the family type user is enough.
In order to reduce investment outlay, for the personal user, still can be as the special-purpose broadband access equipment of last solution integration.
As shown in Figure 4, to the enterprise clusters user, be characterized in the intranet of special construction, one to two computer network interface of each seating allocation is connected on the LAN switch 12, therefore the employee often is distributed in to handle official business in different offices, the floor building not even together a large amount of Internal call demands, the demand of calling out intercommunication phone and transferring by exchange from outer net is also arranged simultaneously, also have from the incoming call of traditional electrical phone network in addition or dial black phone network users or the like the demand of crying, improve this moment and insert easily and reliability is the consideration emphasis.
This environment is used the present invention at two levels, and the one, at enterprise's access level, detect and transmit WAN by the webserver 9 and import the phone data bag into to telephony server 10, the access of 10 responsible phones of telephony server is also transferred to inner LAN subscriber; The 2nd, the network interface of local area network (LAN) is provided with the networking telephone 13, and this networking telephone comprises network processing unit 1 and telephone processor 2 (do not indicate among the figure, but structure being shown in figure one), and network processing unit 1 downstream connects personal computer; Telephone processor 2 is shared physical port (by connecting) and the IP address that is connected to corporate lan with personal computer.
At this moment, the webserver 9 links to each other with LAN switch 12 with telephony server 10, the webserver 9 is provided with the WAN side interface 4 that connects public network, to carry out address detected and shunting forwarding from the packet of public network, to comprise the host-host protocol of telephony server 10 registrations and the packet of address and be transmitted to telephony server 10, other data packet transmission be given the LAN switch 12 that is attached thereto; Telephony server 10 will send described LAN switch 12 to after will handling from the packet of the described webserver 9, and the packet of LAN switch automatic network server 9 in 12 future and telephony server 10 sends described some cover internet phone devices 13 to; Internet phone device 13 comprises that network processing unit 1 and telephone processor 2 (do not indicate among the figure, but structure is shown in figure one), network processing unit 1 one ends (upstream) connect described LAN switch 12, the other end (downstream) is provided with the interface that connects terminal, telephone processor 2 connects network processing unit 1, and be provided with the interface that connects phone ancillary equipment, 1 pair of packet from LAN switch 12 of network processing unit carries out address detected and shunting is transmitted, to comprise the host-host protocol of telephone processor registration and the packet of address and be transmitted to telephone processor 2, give the terminal computer equipment that is attached thereto with other data packet transmission, telephone processor 2 is realized the IP phone controlled function, the control of the coding and decoding of speech and phone, and can realize and described network processing unit between the packet transmission.
The IP address that the described telephony server 10 and the described webserver 9 are shared public networks, the terminal that the telephone processor 2 of described internet phone device 13 is connected with network processing unit 1 is shared the LAN IP address that distributes, and described telephony server 10 in the local area network (LAN) is assigned LAN IP address respectively with the described webserver 9, described some cover internet phone devices 13.
Telephony server 10 is shared same public network IP address by the nat feature and the enterprise Web server of the webserver 9, calls out access thereby conveniently carry out exchange by the domain name of company.
In addition, telephony server 10 can also be provided with black phone network interface 11, the call request that telephony server 10 is accepted from the traditional electrical phone network, the switching of finishing the inner networking telephone continues, and will be converted to the IP voice packets from the voice signal of traditional telephone network and send LAN switch 12 to and send a certain particular network telephone plant 13 to and realize conversation between net by it, phone related data packets from some cover internet phone devices 13 sends telephony server 10 to by LAN switch 12, and be sent to the traditional electrical phone network by telephony server 10, promptly telephony server 10 is finished the relaying access capability of plain old telephone.All plain old telephone speeches thus server finish similar G.723, G.729 the agreement defined Code And Decode and be adapted for networking telephone packet and be forwarded to networking telephone extension set and get on, and the networking telephone is dialled when being PSTN user, still the signaling of finishing between heterogeneous networks by this server is changed and voice transfer, thereby realize and the merging of traditional telephone network, finish signaling conversion and voice transfer between heterogeneous networks.
Claims (8)
1, a kind of method that realizes the networking telephone, it is characterized in that: link to each other with public network by a network processing unit Upstream Interface, one interface of network processing unit links to each other with upstream device, one interface links to each other with telephone processor, telephone processor connects networking telephone ancillary equipment, the IP address of the public network of the upstream device shared network processor Upstream Interface that described telephone processor is connected with described network processing unit; Packet from public network is carried out address detected with described network processing unit and shunting is transmitted, to comprise the host-host protocol of telephone processor registration and the packet of address and be transmitted to described telephone processor, give upstream device with other data packet transmission, described network processing unit receives from the packet of described upstream device and described telephone processor and sends public network to; Described telephone processor is realized the encoding and decoding and the phone control of IP phone controlled function, speech, and the packet between realization and the described network processing unit transmits.
2, a kind of internet phone device of realizing the described method of claim 1 is characterized in that: comprise network processing unit and telephone processor, described network processing unit links to each other with described telephone processor;
Described network processing unit is provided with the network interface and the downstream interface that is connected upstream device that connects the upstream public network, described telephone processor is provided with the interface that connects networking telephone ancillary equipment, the IP address of the public network of the upstream device shared network processor Upstream Interface that described telephone processor is connected with described network processing unit; Packet from public network is carried out address detected with described network processing unit and shunting is transmitted, to comprise the host-host protocol of telephone processor dynamic registration and the packet of address and be transmitted to described telephone processor, to being attached thereto upstream device, described network processing unit receives from the packet of described upstream device and described telephone processor and sends public network to remaining data packet transmission; Described telephone processor is realized the encoding and decoding and the phone control of IP phone controlled function, speech, and can realize and described network processing unit between the packet transmission.
3, internet phone device according to claim 2 is characterized in that: also comprise the expanded application module, described expanded application module links to each other with described telephone processor, and is provided with several expanded application interfaces to realize multimedia communication function.
4, according to claim 2 or 3 described internet phone devices, it is characterized in that: also comprise local area network (LAN) line concentration or switching equipment, described local area network (LAN) line concentration or switching equipment one end link to each other with the downstream interface of described network processing unit, and the other end is provided with the interface that connects several upstream devices; This moment, described telephone processor and described network processing unit were shared public network IP address, and described local area network (LAN) line concentration or upstream device that switching equipment connects distribute the Intranet specific address.
5, a kind of network phone system of realizing the described method of claim 1 is characterized in that: comprise the webserver, telephony server, LAN switch and some cover internet phone devices;
The described webserver links to each other with described LAN switch with described telephony server, the described webserver is provided with the public network interface that connects public network, the described webserver will carry out address detected from the packet of public network and shunting is transmitted, to comprise the host-host protocol of telephony server registration and the packet of address and be transmitted to described telephony server, other packet is transferred to the described LAN switch that is attached thereto according to Routing Protocol after address transition, described network processing unit sends public network to the packet from described telephony server and described LAN switch to according to Routing Protocol after address transition;
Described telephony server links to each other with described LAN switch with the described webserver, described telephony server inserts request and continues and the exchange signaling transfer point changeing public network phone from the described webserver, realizes network communication repeating function between the network telephone plant of outer public network phone and described LAN switch; During the conversation, described telephony server will send described LAN switch to through address transition from the packet of the described webserver, will send the described webserver to from the phone related data packets of described LAN switch;
Described LAN switch links to each other with described telephony server with the described webserver, and connect described some cover internet phone devices, described LAN switch will send described some cover internet phone devices from the packet of the described webserver and described telephony server to, will send the described webserver and described telephony server from the packet of described some cover internet phone devices to;
Described internet phone device comprises network processing unit and telephone processor, described network processing unit upstream connects described LAN switch, the downstream is provided with the interface that connects terminal, described telephone processor one end connects described network processing unit, the other end is provided with the interface that connects phone ancillary equipment, the IP address of the terminal computer equipment shared network processor Upstream Interface that described telephone processor is connected with described network processing unit, packet from described LAN switch is carried out address detected with described network processing unit and shunting is transmitted, to comprise the host-host protocol of telephone processor registration and the packet of address and be transmitted to described telephone processor, give the terminal computer equipment that is attached thereto with other data packet transmission, described network processing unit receives from the packet of described terminal computer equipment and described telephone processor and sends described LAN switch to; Described telephone processor is realized the coding and decoding and the phone control of IP phone controlled function, speech, and can realize and described network processing unit between the packet transmission.
The described telephony server and the described webserver are shared the IP address of public network, the terminal that the telephone processor of described internet phone device is connected with network processing unit is shared the LAN IP address that distributes, and described telephony server in the local area network (LAN) and the described webserver, described some cover internet phone devices are assigned LAN IP address respectively.
6, network phone system according to claim 5 is characterized in that: described LAN switch sends another internet phone device according to address that packet comprises to the packet from a certain cover internet phone device.
7, network phone system according to claim 5 is characterized in that: described telephony server is shared same public network IP address by the nat feature and the enterprise Web server of the webserver.
8, according to any one described network phone system in the claim 5 to 7, it is characterized in that: described telephony server is provided with the black phone network interface, described telephony server is accepted the call request from the traditional electrical phone network, the switching of finishing the inner networking telephone continues, and will be converted to the IP voice packets from the voice signal of traditional telephone network and send described LAN switch to and send a certain particular network telephone plant to by it, phone related data packets from described some cover internet phone devices sends described telephony server to by described LAN switch, and is transferred to the traditional electrical phone network by described telephony server.
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| CNB2004100532885A CN100433677C (en) | 2004-07-29 | 2004-07-29 | Method for realizing networked phone, and device of networked phone |
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| CNB2004100532885A CN100433677C (en) | 2004-07-29 | 2004-07-29 | Method for realizing networked phone, and device of networked phone |
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| CN100433677C true CN100433677C (en) | 2008-11-12 |
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| CN100438442C (en) * | 2006-04-25 | 2008-11-26 | ***通信集团公司 | Media stream shunting system and media stream shunting method |
| CN100459524C (en) * | 2006-04-25 | 2009-02-04 | ***通信集团公司 | Media stream shunting system and method |
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| CN1728660A (en) | 2006-02-01 |
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