CN101212427A - Device and method for accessing IP multimedia subsystem - Google Patents
Device and method for accessing IP multimedia subsystem Download PDFInfo
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- CN101212427A CN101212427A CNA200610170276XA CN200610170276A CN101212427A CN 101212427 A CN101212427 A CN 101212427A CN A200610170276X A CNA200610170276X A CN A200610170276XA CN 200610170276 A CN200610170276 A CN 200610170276A CN 101212427 A CN101212427 A CN 101212427A
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Abstract
The invention discloses a device for accessing in an IP multimedia subsystem and a method thereof, which aims at solving the problem of that the IP multimedia subsystem can not provide service for user not supporting an SIP protocol. The device for accessing the IP multimedia subsystem comprises the steps: an SIP conversion module is added in the IP multimedia subsystem, which can convert a non-SIP signaling sent by the user into an SIP signaling and all user can access to the IP multimedia subsystem through the SIP conversion module; the method for early realizing the IP multimedia subsystem is: after the non-SIP signaling sent by the user is sent to a gateway general packet radio service supporting node after converted into the SIP signaling and the SIP signaling sent by the user is directly forwarded to the gateway general packet radio service supporting node. The invention is mainly used for transmitting a prior network into the IP multimedia subsystem.
Description
Technical field
The present invention relates to IP Multimedia System (IMS), particularly in existing IPv4 network, carry out the apparatus and method of IMS business.
Background technology
IMS is the system of a kind of IP-based session control ability of 3GPP (third generation partner program) proposition, adopts initial session protocol (SIP) as the mutual signaling of application layer.The purpose that 3GPP proposes IMS is in order to enrich the 3G class of business and to increase the attraction of GPRS among the 3G (GPRS) for the user.IMS can realize preferably that resource-sharing, business are shared and the integrated management of network.Just carry out for the research of IMS at present in each standardization body.
The IMS standard that 3GPP formulates is ahead of existing network to the requirement of network.For example, IMS requires to use IPv6, and network is realized on IPv4 mostly now.Before the equipment of supporting the 3GPP code requirement fully occurred, operator may just need carry out some IMS business, and therefore, 3GPP has proposed the early stage notion that realizes of IMS, just carries out the IMS business in existing network.
At present the IMS system that proposes of 3GPP as shown in Figure 1, user that it must is supported Session Initiation Protocol, and the GGSN (Gateway GPRS Support Node) of SIP signaling by PS (packet switching) territory is linked into the IMS territory.Wherein GGSN is used for being user equipment allocation IP address at access procedure, and sends the IP address to the IMS territory; In data handling procedure, check user device IP address, and handling by after checking packet being sent to the IMS territory.Network entity in the IMS territory wherein has P-CSCF (Proxy Call Session Control Function), S-CSCF (service call conversation control function) and HSS (ownership client server), and P-CSCF connects the GGSN in PS territory.But present research is all supported Session Initiation Protocol based on the user that it must that uses the IMS business, do not support the subscriber equipment of Session Initiation Protocol just can't use the IMS business, and be one of the problem that should consider of the early stage realization of IMS for the subscriber equipment of not supporting Session Initiation Protocol provides the IMS business.
Summary of the invention
For overcoming above-mentioned defective, the object of the present invention is to provide a kind of device and method that the access IP Multimedia System of IMS service can be provided for the subscriber equipment of not supporting Session Initiation Protocol.
To achieve the above object of the invention, the present invention's device of inserting IP Multimedia System comprises:
Comprise subscriber equipment and ggsn, also comprise the initial session protocol modular converter, communicate to connect with subscriber equipment and ggsn respectively, be used for data that subscriber equipment is sent and send to ggsn with the form of initial session protocol signaling.
Wherein, described initial session protocol modular converter is a signaling transfer gateway that is positioned at network side, and the safety protecting mechanism that adopts third generation partner program to provide of communicating to connect between initial session protocol modular converter and the subscriber equipment.
Wherein, described initial session protocol modular converter is an external components that is positioned at user side.
Wherein, communicating to connect between described initial session protocol modular converter and the subscriber equipment adopted the bluetooth protection mechanism.
Wherein, communicating to connect between described ggsn and the initial session protocol modular converter, the safety protecting mechanism that adopts third generation partner program to provide.
Wherein, the data of described initial session protocol signaling format comprise user device IP address.
Cooperate the used method of device of above-mentioned access IP Multimedia System may further comprise the steps:
(1) subscriber equipment inserts packet-switched domain, and is user equipment allocation IP address by the ggsn in the packet-switched domain, and this IP address is sent to IP Multimedia System;
(2) subscriber equipment sends to ggsn by the request that the initial session protocol modular converter will insert IP Multimedia System;
(3) ggsn is forwarded to IP Multimedia System with the request of the access IP Multimedia System of subscriber equipment, and IP Multimedia System provides the IP Multimedia System service according to the access solicited message of subscriber equipment for subscriber equipment.
Wherein, described step (2) is specially:
(21) subscriber equipment uses the ggsn IP address allocated, and the request that inserts IP Multimedia System is sent to the initial session protocol modular converter;
(22) the initial session protocol modular converter judges whether this access solicited message is the data of initial session protocol signaling format, if the data of initial session protocol signaling format, execution in step (23); If not the data of initial session protocol signaling format, execution in step (24);
(23) the access request that will receive of initial session protocol modular converter is converted to the initial session protocol signaling format, and sends to ggsn;
(24) the access request that will receive of initial session protocol modular converter directly is transmitted to ggsn.
Wherein, the described access request that sends to ggsn comprises user device IP address.
By technical scheme described above, IP Multimedia System of the present invention has added an initial session protocol modular converter (SIP modular converter), this SIP modular converter can convert non-SIP signaling to the SIP signaling, make and do not support the user of Session Initiation Protocol to convert signaling to the SIP signaling, be able to the purpose that communicates with the IMS system by this SIP modular converter.In the method for the access IP Multimedia System of realizing inserting, user's access request needs twice inspection of priority through GGSN and IMS, can realize the maltilevel security protection.
Description of drawings
Fig. 1 is the structure chart of existing IP Multimedia System;
Fig. 2 inserts the structure drawing of device of IP Multimedia System for the present invention;
Fig. 3 inserts the method flow diagram of IP Multimedia System for the present invention.
Embodiment
Existing IMS can only can be supported the subscriber equipment of Session Initiation Protocol for those service is provided, and can't provide service for the more existing subscriber equipment of Session Initiation Protocol of not supporting, the service that wants to use IMS to provide just must be changed subscriber equipment, and this makes the system that carries out the transition to IMS by existing network system add many obstacles.The present invention invents in order to break this obstacle, and as shown in Figure 2, the network entity of using among the present invention is as follows:
1) subscriber equipment is that the user is used to be linked into the IMS network to obtain the equipment of IMS service, and used here subscriber equipment can be supported Session Initiation Protocol, also can not support Session Initiation Protocol.
2) SIP modular converter (initial session protocol modular converter), this module functions is that the SIP signaling that subscriber equipment is sent directly is transmitted to GGSN (Gateway GPRS Support Node), after being converted to the SIP signaling, the non-SIP signaling that subscriber equipment is sent sends to GGSN again, the GPRS here is meant GPRS, and English full name is: General Packet RadioService.
No matter be through the SIP signaling of SIP modular converter conversion or the SIP signaling of directly transmitting, GGSN must finish identity checks to subscriber equipment according to the SIP signaling that the SIP modular converter is sent.In order to realize identity checks to subscriber equipment, all SIP signalings that send to GGSN all must comprise the identity information of subscriber equipment, the general identity that adopts the user device IP address representative of consumer in existing network, the source address of packet that just sends to the SIP signaling of GGSN must be a user device IP address.Can certainly realize inspection in other way, such as some and the corresponding tabulation of subscriber equipment are set, realize inspection in GGSN the IP address by the mode of tabling look-up to user device IP address.
Adjust the setting of SIP modular converter for the user can make things convenient for oneself sometimes, the SIP modular converter can be manufactured the external components of a subscriber equipment, be connected with subscriber equipment by wired or wireless mode, and be connected to GGSN.
Sometimes for unified service is provided for the user, and reduce the user, the SIP modular converter can be installed in network side as a signaling transfer gateway because of buying the financial burden that external components brings.
3) GGSN in packet switching (PS) territory, this network entity major function is to be user equipment allocation IP address, the IP address of distributing is sent to the IMS territory, by the IMS territory identity and the IP address of subscriber equipment are bound, another critical function of GGSN is that the IP of packet that subscriber equipment is sent checks, can only use the GGSN IP address allocated with the assurance subscriber equipment, and will send to the IMS territory by the packet of checking.
4) IMS territory realizes in early days that with IMS the relevant network entity of security mechanism has P-CSCF (Proxy Call Session Control Function), S-CSCF (service call conversation control function) and HSS (ownership client server) in the IMS territory.These network entities need all to support that IMS realizes security mechanism in early days.
The present invention has overcome the shortcoming of existing subscriber equipment on agreement is supported, proposing increases the SIP modular converter so that do not support the subscriber equipment of Session Initiation Protocol also can visit the IMS business in the early stage realization of IMS.But the network that above-mentioned network entity is formed does not have good safety guarantee, for guaranteeing the safety of the early stage realization of IMS, needs one and can guarantee the system of fail safe and the security threat that the mechanism antagonism exists in the early stage realization of IMS.Safeguard construction is the basis of security study, and the security relationship between each entity is described with the security threat that may run into safeguard construction in the environment to using.Obtain demand for security according to these security threat analyses, and then choose suitable security mechanism and satisfy these demands for security.A good safeguard construction should fully take into account various applied environments, and the basis that the early stage safeguard construction of realizing of IMS is realized security study in early days as IMS also should be carried out various operators the various situations of IMS business and be taken into account under existing environment.
The early stage research that realizes is mainly carried out in 3GPP for IMS, and IMS realizes that in early days security study still is in the starting stage at present, does not have a clear and definite IMS to realize that in early days safeguard construction proposes as yet.Method for security protection between subscriber equipment, GGSN and the IMS territory has only been proposed, and the method for security protection between each entity of inside, IMS territory.
The present invention's invention has proposed the early stage safeguard construction of realizing of a kind of complete IMS again under the prerequisite of the network that the above-mentioned network entity of proposition is formed, the security relationship between the early stage network entity of realizing relating to of IMS is described.Realize not considering in the security study security relationship that adds behind the SIP modular converter in early days at existing IMS, redescribed the security relationship between each network entity.
As shown in Figure 2, the security relationship between the safeguard construction network entity of the present invention's proposition is described in detail as follows:
1, the signaling of transmitting between subscriber equipment and the SIP modular converter (can be that the SIP signaling also can not be the SIP signaling) should provide safeguard protection (label 1 among Fig. 2).
For the mechanism that safeguard protection is provided between subscriber equipment and the SIP modular converter has a lot; if the SIP modular converter provides with the form of an external components of subscriber equipment, use the security mechanism between subscriber equipment and the peripheral hardware to protect in the message of transmitting between subscriber equipment and the SIP modular converter so.For example, if a mobile phone is connected to by Bluetooth technology on the external components of an one SIP modular converter, the communication security between them uses the bluetooth security mechanism to guarantee that bluetooth is a kind of short-distance wireless communication technology, is operated in the 2.4GHz frequency range so.
If the SIP modular converter provides at network side with the form of signaling transfer gateway, the communication between subscriber equipment and the SIP modular converter can be passed through the 3GPP network so, and communication between the two just can be protected by the security mechanism that the 3GPP network is provided.
2, SIP modular converter and GGSN, what transmit between SIP modular converter and the GGSN is the SIP signaling.The IP packet that GGSN transmits via the SIP modular converter subscriber equipment carries out IP to be checked, is that IP address allocated sends the IP packet with what guarantee that subscriber equipment can only use.No matter the SIP modular converter with which kind of form provides, communicating by letter between SIP modular converter and the GGSN all will pass through the 3GPP network, and the security mechanism that the communication employing 3GPP network between them is provided is protected (label 2 among Fig. 2).
3, subscriber equipment and GGSN, in order to visit the IMS business, user that it must at first inserts the network entity GGSN in the PS territory.In the process that successfully inserts the PS territory, GGSN is user equipment allocation IP address, and will distribute to user device IP address and issue the IMS territory.After inserting the success of PS territory, the communication between them is to ensure safety (label 3 among Fig. 2) by the air traffic channel of having set up a safety between subscriber equipment and network, and this safe air traffic channel is used as carrying.
4, GGSN and IMS territory, GGSN will distribute to user device IP address and issue the IMS territory, and the binding relationship between user device IP address and the IMS identity is preserved in the IMS territory.In addition, GGSN also finishes the function that subscriber equipment is communicated by letter with IMS as carrying.Communicating by letter between GGSN and the IMS territory will be passed through the 3GPP network, and the security mechanism that can use the 3GPP network to be provided is protected (label 4 among Fig. 2).
5, SIP modular converter and IMS territory, subscriber equipment are transmitted to the IMS territory with its IMS identity and its IP address through SIP modular converter and GGSN.Whether IMS identity and its IP address of IMS territory by checking subscriber equipment meets the binding relationship that is stored in the IMS territory and finishes authentication to subscriber equipment.Connection between SIP conversion equipment and the IMS territory is that a logic connects (label 5 among Fig. 2), can realize safeguard protection by the security mechanism that label 2 and label 4 provide, and is exactly that the security mechanism of all using the 3GPP network to be provided is protected in the present invention.
6, inside, IMS territory is because inside, IMS territory all belongs to the 3GPP network, so use is that the security mechanism that the 3GPP network is provided is protected (label 6 among Fig. 2).
According to the security relationship between each network entity described above; the communication that the present invention inserts between each network entity in the device of IP Multimedia System is all carried out overprotection by security mechanism, so whole system all is in safe condition preferably in communication process.
Device in conjunction with above-mentioned access IP Multimedia System, the present invention also provides system for this reason that the safe implementation method of service is provided, its core concept is that the data that the user sends are all passed through the SIP module processing, make that the data that send to GGSN all are the SIP signaling formats, realize the generally support of IP Multimedia System to existing subscriber equipment, for more vast user provides IMS service, the method that the present invention inserts IP Multimedia System mainly may further comprise the steps:
The first step, subscriber equipment insert the PS territory, and in access procedure, the GGSN in the PS territory is user equipment allocation IP address, and will distribute to user device IP address and issue the IMS territory.User's the IMS territory identity and the binding relationship of IP address are preserved in the IMS territory.
Second step, subscriber equipment use IP address allocated to initiate to insert the request in IMS territory.This request may be based on the signaling of Session Initiation Protocol, also may be based on other agreements, and for example RAS signaling, call signaling H.255.0.
The 3rd step, SIP modular converter are converted to the SIP signaling with the demand signalling in the access IMS territory that subscriber equipment is sent, the SIP modular converter must support IMS realize in early days security mechanism (comprise and the safe and GGSN of communications of user equipment between communication security and and the IMS territory between safety), the SIP signaling after the conversion must make GGSN to check user device IP address according to the signaling that receives.Specifically can realize IMS is realized in early days the support of security mechanism by the following method:
(1) be the SIP signaling if subscriber equipment sends, then the SIP modular converter is not made any modification and directly the SIP signaling is transmitted to GGSN, the IP source address of the SIP signaling that process SIP conversion equipment sends is the IP source address of subscriber equipment, and generally the value by a send by (transmission source) parameter in the SIP signaling of transmitting is set to user device IP address.
(2) if the non-SIP signaling sent of subscriber equipment, but the signaling such as RAS, H.255.0, the SIP modular converter just is encapsulated in subscriber identity information (comprising IMS territory identity and IP address) again in the SIP signaling and is transmitted to GGSN; The source address of the IP packet of the SIP signaling that process SIP conversion equipment sends is a user device IP address; Also can be set to user device IP address by the value of send by parameter in the SIP signaling of transmitting.
Certainly, except the above-mentioned identity accident of confirming subscriber equipment by the mode that source address is set, also can make GGSN to carry out the source address inspection by additive method to the packet that the SIP conversion equipment is sent, for example: some and the corresponding tabulation of subscriber equipment are set in GGSN, realize inspection to the IP address by the mode of tabling look-up.
The 4th step, GGSN check the IP address of the packet of the SIP signaling receive, and what confirm that subscriber equipment uses is the GGSN IP address allocated, use the IP address transmission data bag of forging after, the packet of this SIP signaling is transmitted to the IMS territory handles.
The 5th step, IMS territory be according to the packet of the SIP signaling that receives, checks that whether and meet the IMS territory identity of preserving and the binding relationship of IP address in the first step IMS identity of subscriber equipment and IP address.If meet, authentication success then, subscriber equipment can be visited the IMS business.If do not meet, authentification failure then, subscriber equipment are rejected visit IMS business.
The present invention inserts in the method for IP Multimedia System, utilize the SIP modular converter to realize that the IMS territory provides service for the subscriber equipment of not supporting SIP, and the double identity checks in PS territory and IMS territory in intervention procedure, have been used, guarantee that subscriber equipment has the right in visit IMS territory, and between each network entity, add security mechanism in the communication, realize the communication security of this IMS service.
Below in conjunction with accompanying drawing the early stage system that realizes of IMS is further elaborated:
The functional entity that relates among Fig. 2 comprises that a mobile phone of not supporting Session Initiation Protocol (subscriber equipment a kind of), an external components that is connected by Bluetooth technology with mobile phone finish function, the GGSN in PS territory, P-CSCF, S-CSCF and the HSS in IMS territory of SIP conversion equipment.Mobile phone and the safety of finishing between the external components of SIP translation function adopt the security mechanism of bluetooth to protect; The security mechanism protection of the network domains of 3GPP definition is used in safeguard protection in the IMS territory between each entity; Informational needs between external components and the IMS territory is transmitted by GGSN, is that a logic connects; Use the security mechanism of 3GPP network to protect between external components and the GGSN; Use the protection of 3GPP network domain security mechanism between GGSN and the IMS territory.
Fig. 3 is a concrete method of implementing of the present invention, is the safeguard construction that proposes according to the present invention, a process of not supporting the mobile phone of Session Initiation Protocol by the IMS authentication, and detailed process is described below:
(1) mobile phone inserts the PS territory, and in this access procedure, GGSN is IP address of handset allocation, and the IP address that will distribute to mobile phone sends the IMS territory to.Binding relationship between the IMS territory identity of the IP address of IMS territory memory mobile phone and mobile phone.
(2) mobile phone inserts the IMS territory, because this mobile phone is not supported Session Initiation Protocol, therefore can only make a call with other call control protocols.
(3) the access request of mobile phone is passed to the external components with SIP translation function, this external components is finished following translation function: the information that comprises in the non-SIP signaling that mobile phone is sent, again be encapsulated in the SIP signaling as subscriber identity information and IP address and be transmitted to GGSN, but must change the source address of the IP packet that receives, the source address of the IP packet of the SIP signaling that feasible process SIP conversion equipment sends remains the IP address of mobile phone.The function that does not below change the mobile phone source address can also realize in concrete enforcement in the following manner: the IP address that the value of the send by parameter in the SIP signaling of transmitting is made as mobile phone.
(4) GGSN checks the IP address receive packet, confirm that this mobile phone does not use the IP address transmission data bag of forgery after, packet is transmitted to the IMS territory handles.
(5) the IMS territory is according to the message of the SIP signaling that receives, check that whether and meet the IMS identity of preserving and the binding relationship of IP address in the first step IMS identity of mobile phone and IP address, if meet the IMS identity of in the first step, preserving and the binding relationship of IP address, this mobile phone authentication success then, IP Multimedia System provides IMS service for this mobile phone; If do not meet the IMS identity of in the first step, preserving and the binding relationship of IP address, this mobile phone authentification failure then, IP Multimedia System does not provide IMS service for this mobile phone.
SIP modular converter in above specific embodiment is the external components that is positioned at user equipment side, can also be a signaling transfer gateway that is installed in network side in fact; And what use in the access procedure is mobile phone, and in the specific implementation, IMS can also provide service for multiple subscriber equipmenies such as mobile computer, palmtop PC, e-commerces, and no matter whether this subscriber equipment can support the signaling of Session Initiation Protocol.
Claims (9)
1. device that inserts IP Multimedia System, comprise subscriber equipment and ggsn, it is characterized in that: also comprise the initial session protocol modular converter, communicate to connect with subscriber equipment and ggsn respectively, be used for data that subscriber equipment is sent and send to ggsn with the form of initial session protocol signaling.
2. according to the device of the described access IP Multimedia System of claim 1; it is characterized in that: described initial session protocol modular converter is a signaling transfer gateway that is positioned at network side, and the safety protecting mechanism that adopts third generation partner program to provide of communicating to connect between initial session protocol modular converter and the subscriber equipment.
3. according to the device of the described access IP Multimedia System of claim 1, it is characterized in that: described initial session protocol modular converter is an external components that is positioned at user side.
4. according to the device of the described access IP Multimedia System of claim 3, it is characterized in that: communicating to connect between described initial session protocol modular converter and the subscriber equipment adopted the bluetooth protection mechanism.
5. according to the device of the described access IP Multimedia System of claim 1; it is characterized in that: communicating to connect between described ggsn and the initial session protocol modular converter, the safety protecting mechanism that adopts third generation partner program to provide.
6. according to the device of the described access IP Multimedia System of claim 1, it is characterized in that: the data of described initial session protocol signaling format comprise user device IP address.
7. method that inserts IP Multimedia System is characterized in that: may further comprise the steps:
(1) subscriber equipment inserts packet-switched domain, and is user equipment allocation IP address by the ggsn in the packet-switched domain, and this IP address is sent to IP Multimedia System;
(2) subscriber equipment sends to ggsn by the request that the initial session protocol modular converter will insert IP Multimedia System;
(3) ggsn is forwarded to IP Multimedia System with the request of the access IP Multimedia System of subscriber equipment, and IP Multimedia System provides the IP Multimedia System service according to the access solicited message of subscriber equipment for subscriber equipment.
8. according to the method for the described access IP Multimedia System of claim 7, it is characterized in that: described step (2) is specially:
(21) subscriber equipment uses the ggsn IP address allocated, and the request that inserts IP Multimedia System is sent to the initial session protocol modular converter;
(22) the initial session protocol modular converter judges whether this access solicited message is the data of initial session protocol signaling format, if the data of initial session protocol signaling format, execution in step (23); If not the data of initial session protocol signaling format, execution in step (24);
(23) the access request that will receive of initial session protocol modular converter is converted to the initial session protocol signaling format, and sends to ggsn;
(24) the access request that will receive of initial session protocol modular converter directly is transmitted to ggsn.
9. according to the method for the described access IP Multimedia System of claim 8, it is characterized in that: the described access request that sends to ggsn comprises user device IP address.
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| CNA200610170276XA CN101212427A (en) | 2006-12-26 | 2006-12-26 | Device and method for accessing IP multimedia subsystem |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA200610170276XA CN101212427A (en) | 2006-12-26 | 2006-12-26 | Device and method for accessing IP multimedia subsystem |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101997887A (en) * | 2009-08-20 | 2011-03-30 | ***通信集团公司 | Method for sending, receiving and transmitting service signaling and terminal |
| CN102843651A (en) * | 2011-06-22 | 2012-12-26 | 中兴通讯股份有限公司 | Public warning system, key transmitting and acquiring method and secure connection establishing method |
| WO2013044717A1 (en) * | 2011-09-29 | 2013-04-04 | 中兴通讯股份有限公司 | Method and system for telecommunication network to provide session service to internet |
| CN103227788A (en) * | 2013-04-17 | 2013-07-31 | 广州市和声信息技术有限公司 | Method and system realizing communication between web-based application and SIP equipment |
| CN107864161A (en) * | 2017-12-21 | 2018-03-30 | 北京明朝万达科技股份有限公司 | A kind of data transmission method and device |
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2006
- 2006-12-26 CN CNA200610170276XA patent/CN101212427A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101997887A (en) * | 2009-08-20 | 2011-03-30 | ***通信集团公司 | Method for sending, receiving and transmitting service signaling and terminal |
| CN102843651A (en) * | 2011-06-22 | 2012-12-26 | 中兴通讯股份有限公司 | Public warning system, key transmitting and acquiring method and secure connection establishing method |
| CN102843651B (en) * | 2011-06-22 | 2017-03-15 | 中兴通讯股份有限公司 | Public warning system and key transmission, acquisition methods, secure connection method for building up |
| WO2013044717A1 (en) * | 2011-09-29 | 2013-04-04 | 中兴通讯股份有限公司 | Method and system for telecommunication network to provide session service to internet |
| CN103227788A (en) * | 2013-04-17 | 2013-07-31 | 广州市和声信息技术有限公司 | Method and system realizing communication between web-based application and SIP equipment |
| CN103227788B (en) * | 2013-04-17 | 2016-02-03 | 广州市和声信息技术有限公司 | Realize the method and system that Web page application program and SIP equipment carry out communicating |
| CN107864161A (en) * | 2017-12-21 | 2018-03-30 | 北京明朝万达科技股份有限公司 | A kind of data transmission method and device |
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