CN103402072A - Videophone communication system and method - Google Patents
Videophone communication system and method Download PDFInfo
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- CN103402072A CN103402072A CN2013103453070A CN201310345307A CN103402072A CN 103402072 A CN103402072 A CN 103402072A CN 2013103453070 A CN2013103453070 A CN 2013103453070A CN 201310345307 A CN201310345307 A CN 201310345307A CN 103402072 A CN103402072 A CN 103402072A
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Abstract
The invention provides a videophone communication system and method. The videophone communication system comprises a 3G terminal, a 3G gateway and an SIP (System In Package) server; the 3G terminal is used for sending a video call to the 3G gateway, or receiving a video call sent by the 3G gateway; the 3G gateway is used for receiving the video call sent by the 3G terminal and sending the video call to the SIP server, or receiving the video call sent by the SIP server and sending the video call to the 3G terminal; the SIP server is used for continuing the video call received from the 3G gateway on a calling side to the 3G gateway on a called side, that is, transferring the video call. Therefore, the system and the method can achieve the video call under the same or different core networks, and meanwhile, video terminal process information can be known by the SIP server serving as a control center, so that the videophone communication is controlled.
Description
Technical field
The present invention relates to the mobile communication technology field, particularly a kind of video telephone communication system and communication means.
Background technology
The CS64K video telephone of the TDSCDMA that defines in the 3GPP agreement and WCDMA standard is that a kind of data service as circuit domain exists.And when the 3G mobile network carries out the intercommunication of CS64K visual telephone service by core net and other ext nal network element, the general employing allows other network elements support the mode that the Nb interface agreement is carried out intercommunication, perhaps adopts the mode of carrying out intercommunication after the built-in video transfer gateway conversion of core net.
Wherein, if according to the Nb interface agreement, dock, other network elements need to be realized according to the requirement of core net protocol stack as shown in Figure 1, a plurality of modules such as MTP3B, SAAL, IPBCP, NbUp have been comprised, defer to 3GPP agreement regulation fully, need to realize a plurality of modules, comparatively complicated.
If by core net built in video gateway mode, carry out intercommunication, need to resolve the video code flow of CS64K in core net inside, isolate the information such as signaling (H.324M), voice (AMR), video (H.263), change by built-in video gateway, be converted to common soft switch video interface, for example: H.324M be converted to SIP/H.323/MGCP, G.729/G.711 AMR is converted to, and H.263 is converted to H.264 etc.But this kind implementation is larger for the core net transformation.
If the mode by external video gateway is carried out intercommunication, not only need to define external video gateway and the interface of core net, also need to carry out the protocol conversion function same with built-in gateway.This kind implementation is more complicated, and external device will make cost higher.
Also having at present a kind of mode is pseudo-intercommunication, and namely carrying out intercommunication between the 3G terminal under same core gateway and 3G terminal is to carry out the loopback intercommunication in this core net inside.It is simple that this mode seems, can realize the intercommunication between 3G terminal, but the problem that exists is:, if once two terminals, be present under different core net directly loopback intercommunication, still need to increase intercommunication interface between two core net, more complicated; Two, signaling procedure is fully in inside, the state when server apparatus can't be known terminal and carries out video calling.
Therefore, provide a kind of video telephone communication method and communication system to realize the video calling/video telephone communication between 3G terminal, and server apparatus can know video terminal procedural information (such as in calling out, in conversation, the state such as standby) become those skilled in the art's problem demanding prompt solution.
Summary of the invention
The object of the present invention is to provide a kind of video telephone communication system and communication means, to solve in existing video telephone communication, video calling more complicated between 3G terminal and signaling procedure be fully in inside, the problem of the state when server apparatus can't be known terminal and carries out video calling.
For solving the problems of the technologies described above, the invention provides a kind of video telephone communication system, described video telephone communication system comprises: 3G terminal, 3G gateway and sip server; Wherein,
Described 3G terminal, in order to described 3G gateway, to send video call, perhaps receives the video call that the 3G gateway sends;
Described 3G gateway is in order to the video call that receives 3G terminal and send and send to described sip server, perhaps receives the video call that sip server sends and sends to 3G terminal;
Described sip server is routed to the 3G gateway of callee side in order to the video call that will receive from the 3G gateway of Calling Side.
Optionally, in described video telephone communication system, described sip server is identified video call according to the field in the SDP message of the 3G gateway transmission of Calling Side.
Optionally, in described video telephone communication system, described sip server is identified video call according to bearer types and medium type in the SDP message of the 3G gateway transmission of Calling Side.
Optionally, in described video telephone communication system, after described sip server is identified video call according to the field in the SDP message of the 3G gateway transmission of Calling Side, the SDP message of the 3G gateway of Calling Side transmission is transparent to the 3G gateway of callee side.
Optionally, in described video telephone communication system, the video media stream that described sip server also sends the 3G gateway of Calling Side/callee side is transparent to the 3G gateway of callee side/Calling Side.
The present invention also provides a kind of video telephone communication method, and described video telephone communication method comprises:
Send video call as the 3G terminal of caller to the 3G gateway of Calling Side;
The 3G gateway of Calling Side sends video call to sip server;
The video call that sip server will receive from the 3G gateway of Calling Side is routed to the 3G gateway of callee side.
Optionally, in described video telephone communication method, also comprise:
The 3G gateway of callee side sends video call to the 3G terminal as called;
As the 3G terminal of called 3G terminal response as caller, as the 3G terminal of caller realize with 3G terminal as called between video calling be connected.
Optionally, in described video telephone communication method, described 3G terminal as caller comprises to the 3G gateway transmission video call of Calling Side:
Send the request of CS64K video traffic as the 3G terminal of caller to the 3G gateway of Calling Side;
The 3G gateway of Calling Side sends CS64K video traffic setup requests to the 3G terminal as caller;
3G terminal as caller has carried out the video call processing messages to the 3G gateway transmission of Calling Side.
Optionally, in described video telephone communication method, after the 3G terminal as caller sends the request of CS64K video traffic to the 3G gateway of Calling Side, before the 3G gateway of Calling Side sent CS64K video traffic setup requests to the 3G terminal as caller, described 3G terminal as caller also comprised to the 3G gateway transmission video call of Calling Side:
The 3G gateway of Calling Side sends authentication request message to the 3G terminal as caller;
Send authentication response message as the 3G terminal of caller to the 3G gateway of Calling Side;
The 3G gateway of Calling Side sends the safe mode request message to the 3G terminal as caller;
Send security mode response message as the 3G terminal of caller to the 3G gateway of Calling Side.
Optionally, in described video telephone communication method, the 3G gateway of described Calling Side sends video call to sip server and comprises:
The 3G gateway of Calling Side sends call request message to sip server, and described call request message comprises sip server can identify the SDP message of video call according to this.
Optionally, in described video telephone communication method, send call request message at the 3G of Calling Side gateway to sip server, described call request message comprises after sip server can identify the SDP message of video call according to this, and the 3G gateway of described Calling Side sends video call to sip server and also comprises:
Sip server sends authentication request message to the 3G gateway of Calling Side;
The 3G gateway of Calling Side sends authentication response message to sip server.
Optionally, in described video telephone communication method, the 3G gateway that the video call that described sip server will receive from the 3G gateway of Calling Side is routed to callee side comprises:
Sip server sends call request message to the 3G gateway of callee side, and described call request message comprises SDP message, and described SDP message is that the SDP message that sip server directly will receive from the 3G gateway of Calling Side carries;
The 3G gateway of callee side sends the calling procedure Indication message to sip server;
Sip server sends the calling procedure Indication message to the 3G gateway of Calling Side.
Optionally, in described video telephone communication method, the 3G gateway of described callee side sends video call to the 3G terminal as called and comprises:
The 3G gateway of callee side sends beep-page message to the 3G terminal as called;
As the 3G gateway transmission page-response message of called 3G terminal to callee side;
The 3G gateway of callee side sends CS64K video traffic setup requests to the 3G terminal as called;
Carry out video call as called 3G terminal to the 3G gateway transmission of callee side and processed acknowledge message.
Optionally, in described video telephone communication method, at the 3G terminal as called after the 3G gateway of callee side sends page-response message, before the 3G gateway of callee side sent CS64K video traffic setup requests to the 3G terminal as called, the 3G gateway of described callee side sent video call to the 3G terminal as called and also comprises:
The 3G gateway of callee side sends authentication request message to the 3G terminal as called;
As the 3G gateway transmission authentication response message of called 3G terminal to callee side;
The 3G gateway of callee side sends the safe mode request message to the 3G terminal as called;
As the 3G gateway transmission security mode response message of called 3G terminal to callee side;
The 3G gateway of callee side sends interim identification code relocation command to the 3G terminal as called;
Complete message as called 3G terminal to the interim identification code reallocation of the 3G gateway transmission of callee side.
Optionally, in described video telephone communication method, described as the 3G terminal of called 3G terminal response as caller, as the 3G terminal of caller realize with 3G terminal as called between video calling be connected and comprise:
As the 3G gateway transmission ALERTING message of called 3G terminal to callee side;
The 3G gateway of callee side sends ALERTING message to sip server;
Sip server sends ALERTING message to the 3G gateway of Calling Side;
The 3G gateway of Calling Side sends ALERTING message to the 3G terminal as caller.
Optionally, in described video telephone communication method, at the 3G terminal as the called response 3G terminal as caller, as the 3G terminal of caller realize with 3G terminal as called between video calling be connected after, also comprise:
As the 3G gateway transmission offhook message of called 3G terminal to callee side;
The 3G gateway of callee side sends offhook message to sip server;
The 3G gateway of callee side sends the off-hook acknowledge message to the 3G terminal as called;
Sip server sends the off-hook response message to the 3G gateway of callee side;
Sip server sends as called 3G terminal offhook message to the 3G gateway of Calling Side;
The 3G gateway of Calling Side sends the off-hook response message to sip server;
The 3G gateway of Calling Side sends as called 3G terminal offhook message to the 3G terminal as caller;
Send the off-hook response message as the 3G terminal of caller to the 3G gateway of Calling Side.
In video telephone communication system provided by the invention and communication means, to be routed to from the video call that the 3G gateway of Calling Side receives the 3G gateway of callee side by sip server, namely video call is carried out transfer, can either realize easily identical thus or different core video calling off the net, can know simultaneously the procedural information of video terminal as the sip server of control centre, make video telephone communication controlled.
Description of drawings
Fig. 1 is the protocol stack schematic diagram of the Nb interface of 3GPP definition;
Fig. 2 is the schematic flow sheet that the 3G terminal of the embodiment of the present invention one is registered to sip server by the 3G gateway;
Fig. 3 is the mount structure schematic diagram of the video telephone communication system of the embodiment of the present invention one;
Fig. 4 is the Calling Side schematic flow sheet of the video telephone communication method of the embodiment of the present invention two;
Fig. 5 is the callee side schematic flow sheet of the video telephone communication method of the embodiment of the present invention two.
Embodiment
Below in conjunction with the drawings and specific embodiments, video telephone communication system and the communication means that the present invention proposes is described in further detail.According to the following describes and claims, advantages and features of the invention will be clearer.It should be noted that, accompanying drawing all adopts very the form of simplifying and all uses non-ratio accurately, only in order to convenient, the purpose of the aid illustration embodiment of the present invention lucidly.
Core concept of the present invention is, to be routed to from the video call that the 3G gateway of Calling Side receives the 3G gateway of callee side by sip server, namely video call is carried out transfer, can either realize easily identical thus or different core video calling off the net, can know simultaneously the procedural information of video terminal as the sip server of control centre, make video telephone communication controlled.
[embodiment one]
In the present embodiment, provide a kind of video telephone communication system, described video telephone communication system comprises: 3G terminal, 3G gateway and sip server; Wherein,
Described 3G terminal, in order to described 3G gateway, to send video call, perhaps receives the video call that the 3G gateway sends;
Described 3G gateway is in order to the video call that receives 3G terminal and send and send to described sip server, perhaps receives the video call that sip server sends and sends to 3G terminal;
Described sip server is routed to the 3G gateway of callee side in order to the video call that will receive from the 3G gateway of Calling Side.
In the present embodiment, before carrying out video calling/video telephone communication, at first 3G terminal is registered to sip server by the 3G gateway, that is to say 3G terminal seems it can is a common sip user at sip server.Concrete, please refer to Fig. 2, it be the schematic flow sheet that the 3G terminal of the embodiment of the present invention one is registered to sip server by the 3G gateway.As shown in Figure 2,3G terminal specifically comprises by the process of 3G gateway to the sip server registration:
3G terminal sends the location area updating request message to the 3G gateway;
The 3G gateway sends the location area updating response message to 3G terminal;
The 3G gateway sends login request message to sip server;
Sip server sends registration reply message to the 3G gateway.
By above-mentioned steps, 3G terminal is completed the registration to sip server.Wherein, it is periodic that 3G terminal is registered (also referred to as location area updating) to network side, is subjected to Timer Controlling, be generally 1 hour once, effect is that 3G terminal is told network side, this moment terminal position, as be positioned at below which base station, which residential quarter.During specific implementation, 3G terminal is to keeping user profile after the 3G gateway registration, and the 3G gateway is subjected to the control of periodical timer to read these information to carry out conversion and to sip server, register.
In addition, for the WCDMA system, after the 3G gateway sent the location area updating request message, before the 3G gateway sent the location area updating response message to 3G terminal, also comprise: 3G terminal sent authentication request message to the 3G gateway at 3G terminal; The 3G gateway sends authentication response message to 3G terminal; 3G terminal sends the safe mode request message to the 3G gateway; The 3G gateway sends security mode response message to 3G terminal.To this, the TDSCDMA system is alternative to be carried out.
Further, after sip server sent login request message, before sip server sent registration reply message to the 3G gateway, also can comprise: the 3G gateway sent authentication request message to sip server at the 3G gateway; Sip server sends authentication response message to the 3G gateway.
In addition, can also be called by reference name about the process of 3G terminal to the sip server registration: the Chinese publication application of the system and method that a kind of mobile network of realization is docked with the NGN network, its application number is: open day be 201310056750.6: 2013-06-19.Wherein, the said sip server of the application is NGN server in described Chinese publication application (a kind of form).In addition, the said sip server of the application also comprises those and possesses the scheduling switch of sip server function.
In the present embodiment, described sip server is identified video call according to the field in the SDP message of the 3G gateway transmission of Calling Side.Further, described sip server is identified video call according to bearer types and medium type in the SDP message of the 3G gateway transmission of Calling Side.Concrete, described sip server can define bearer types in SDP message and the content of medium type, characterizing the Media Stream that transmits accordingly is video/video telephone Media Stream, is specially the Media Stream of 3G_324M type, and Calling Side and callee side all can identify video telephone thus.
For transport-type,, from the agreement degree, adopt the udp protocol transfer ratio more accurate, can be defined as: m=video49232udp3G_324M.In addition, it is also feasible adopting RTP in practical application, such as m=video10036RTP/AVP(or RTP/SAVP) 98, as long as this medium type can be identified and process to Calling Side and callee side that sip server connects.
Further, after described sip server is identified video call according to the field in the SDP message of the 3G gateway transmission of Calling Side, the SDP message of the 3G gateway of Calling Side transmission is transparent to the 3G gateway of callee side.Be after described sip server will recognize from the SDP source codec that the 3G gateway of Calling Side receives and be video call, the 3G gateway that the SDP message that will receive from the 3G gateway of Calling Side remains untouched and directly is carried to callee side.Thus, can reduce the workload of described sip server, improve systematic function.Further, described sip server also is transparent to the video media stream of the 3G gateway of Calling Side/callee side transmission the 3G gateway of callee side/Calling Side.The Media Stream of the 64Kbps that namely Calling Side/callee side is sent is not made an amendment, and directly is pass-through to opposite side (callee side/Calling Side), has namely realized the transmission of video calling content this moment.
Concrete, please refer to Fig. 3, it is the mount structure schematic diagram of the video telephone communication system of the embodiment of the present invention one.As shown in Figure 3, schematically show a sip server 10 at this; Two 3G gateways, be respectively the 3G gateway 11 of Calling Side and the 3G gateway 12 of callee side; Two 3G terminal, be respectively as the 3G terminal 13 of caller and as called 3G terminal 14.Wherein, as the 3G terminal 13 of caller, with 3G gateway 11 signals of Calling Side, be connected, as called 3G terminal 14, with 3G gateway 12 signals of callee side, be connected, the 3G gateway 11 of Calling Side and the 3G gateway 12 of callee side all are connected with sip server 10 signals.
, by this video telephone communication system, can realize being in the connection between the 3G terminal of different core network; In addition, by described sip server 10, also can obtain the communication process of video telephone, namely obtain current 3G terminal as caller 13 and still be in connection procedure as called 3G terminal 14, still entered video call process etc. information.In addition, when the 3G terminal that communicates was in same core net, two 3G terminal were connected with same 3G gateway, and this 3G gateway is connected and gets final product with a sip server.
Wherein, as the 3G terminal 13 of caller and as the video telephone communication process/method between called 3G terminal 14, specifically please refer to next embodiment.
[embodiment two]
In the present embodiment, provide a kind of video telephone communication method, described video telephone communication method comprises: as the 3G terminal of caller, to the 3G gateway of Calling Side, send video call; The 3G gateway of Calling Side sends video call to sip server; The video call that sip server will receive from the 3G gateway of Calling Side is routed to the 3G gateway of callee side.Wherein, the field in the SDP message that described sip server sends according to the 3G gateway of Calling Side is identified video call, and and then this SDP message of transparent transmission, the video call of identification is routed to the 3G gateway of callee side.
Further, after the video call that described sip server will receive from the 3G gateway of Calling Side was routed to the 3G gateway of callee side, also comprise: the 3G gateway of callee side sent video call to the 3G terminal as called; As the 3G terminal of called 3G terminal response as caller, as the 3G terminal of caller realize with 3G terminal as called between video calling be connected.
Concrete, please refer to Fig. 4 and Fig. 5, wherein, Fig. 4 is the Calling Side schematic flow sheet of the video telephone communication method of the embodiment of the present invention two; Fig. 5 is the callee side schematic flow sheet of the video telephone communication method of the embodiment of the present invention two.
As shown in Figures 4 and 5, further, described 3G terminal as caller sends video call to the 3G gateway of Calling Side and comprises: as the 3G terminal of caller, to the 3G gateway of Calling Side, send CS64K video traffic request (CM Service Request); The 3G gateway of Calling Side sends CS64K video traffic setup requests (CC Setup) to the 3G terminal as caller; 3G terminal as caller has carried out video call processing messages (CC Call Proceeding) to the 3G gateway transmission of Calling Side.For the WCDMA system, after the 3G terminal as caller sends the request of CS64K video traffic to the 3G gateway of Calling Side, before the 3G gateway of Calling Side sent CS64K video traffic setup requests to the 3G terminal as caller, described 3G terminal as caller also comprises to the 3G gateway transmission video call of Calling Side: the 3G gateway of Calling Side sent authentication request message (Authentication Request) to the 3G terminal as caller; Send authentication response message (Authentication Response) as the 3G terminal of caller to the 3G gateway of Calling Side; The 3G gateway of Calling Side sends safe mode request message (id-Security Mode Control) to the 3G terminal as caller; Send security mode response message (id-Security Mode Control) as the 3G terminal of caller to the 3G gateway of Calling Side.To this, the TDSCDMA system is alternative to be carried out.
Further, the 3G gateway of described Calling Side sends video call to sip server and comprises: the 3G gateway of Calling Side sends call request message (INVITE) to sip server, and described call request message comprises sip server can identify the SDP message of video call according to this.Further, the 3G gateway of described Calling Side also can comprise to sip server transmission video call: sip server sends authentication request message (Proxy Authentication Required) to the 3G gateway of Calling Side; The 3G gateway of Calling Side sends authentication response message (ACK) to sip server.
Further, the 3G gateway that the video call that described sip server will receive from the 3G gateway of Calling Side is routed to callee side comprises: sip server sends call request message (INVITE) to the 3G gateway of callee side, described call request message comprises SDP message, and described SDP message is that the SDP message that sip server directly will receive from the 3G gateway of Calling Side carries; The 3G gateway of callee side sends calling procedure Indication message (100Trying) to sip server; Sip server sends calling procedure Indication message (100Trying) to the 3G gateway of Calling Side.
Further, the 3G gateway of described callee side comprises to the transmission of the 3G terminal as called video call: the 3G gateway of callee side sends beep-page message (Paging) to the 3G terminal as called; As the 3G gateway transmission page-response message (Paging Response) of called 3G terminal to callee side; The 3G gateway of callee side sends CS64K video traffic setup requests (CC Setup) to the 3G terminal as called; Carry out video call as called 3G terminal to the 3G gateway transmission of callee side and processed acknowledge message (CCCall Confirmed).For the WCDMA system, at the 3G terminal as called after the 3G gateway of callee side sends page-response message, before the 3G gateway of callee side sent CS64K video traffic setup requests to the 3G terminal as called, also comprise: the 3G gateway of callee side sent authentication request message (Authentication Request) to the 3G terminal as called; As the 3G gateway transmission authentication response message (Authentication Response) of called 3G terminal to callee side; The 3G gateway of callee side sends safe mode request message (Security Mode Control) to the 3G terminal as called; As the 3G gateway transmission security mode response message (Security Mode Control) of called 3G terminal to callee side.To this, the TDSCDMA system is alternative to be carried out.Further, for WCDMA system and TDSCDMA system, afterwards, also can comprise in the 3G gateway transmission security mode response message (Security Mode Control) of the 3G terminal as called to callee side: the 3G gateway of callee side sends interim identification code relocation command (TMSI Reallocation Command) to the 3G terminal as called; Complete message (TMSI Reallocation Complete) as called 3G terminal to the interim identification code reallocation of the 3G gateway transmission of callee side.
Further, described as the 3G terminal of called 3G terminal response as caller, as the 3G terminal of caller realize with 3G terminal as called between video calling be connected and comprise: as the 3G gateway transmission ALERTING message (CC Alerting) of called 3G terminal to callee side; The 3G gateway of callee side sends ALERTING message (183Session Progress) to sip server; Sip server sends ALERTING message (180Ringing/183Session Progress) to the 3G gateway of Calling Side; The 3G gateway of Calling Side sends ALERTING message ((CC) Alerting) to the 3G terminal as caller.
In addition, described video telephone communication method also can further comprise: as the 3G gateway transmission offhook message (CC Connect) of called 3G terminal to callee side; The 3G gateway of callee side sends offhook message (200OK) to sip server; The 3G gateway of callee side sends off-hook acknowledge message (CC Connect Ack) to the 3G terminal as called; Sip server sends off-hook response message (Ack) to the 3G gateway of callee side; Sip server sends as called 3G terminal offhook message (200OK) to the 3G gateway of Calling Side; The 3G gateway of Calling Side sends off-hook response message (ACK) to sip server; The 3G gateway of Calling Side sends as called 3G terminal offhook message ((CC) Connect Ack) to the 3G terminal as caller; Send off-hook response message ((CC) Connect) as the 3G terminal of caller to the 3G gateway of Calling Side.After the 3G terminal realization of caller and as the video calling between called 3G terminal, connecting, described sip server just can be transparent to the video media stream that the 3G gateway of Calling Side/callee side sends the 3G gateway of callee side/Calling Side, has namely realized the transmission of video calling content.
Finally, be routed to the 3G gateway of callee side as the 3G terminal of caller and the video call that as called 3G terminal, by sip server, will receive from the 3G gateway of Calling Side, namely video call is carried out transfer, can either realize easily identical thus or different core video calling off the net, can know simultaneously the procedural information of video terminal as the sip server of control centre, make video telephone communication controlled.
Foregoing description is only the description to preferred embodiment of the present invention, and not to any restriction of the scope of the invention, any change, modification that the those of ordinary skill in field of the present invention is done according to above-mentioned disclosure, all belong to the protection range of claims.
Claims (16)
1. a video telephone communication system, is characterized in that, comprising: 3G terminal, 3G gateway and sip server; Wherein,
Described 3G terminal, in order to described 3G gateway, to send video call, perhaps receives the video call that the 3G gateway sends;
Described 3G gateway is in order to the video call that receives 3G terminal and send and send to described sip server, perhaps receives the video call that sip server sends and sends to 3G terminal;
Described sip server is routed to the 3G gateway of callee side in order to the video call that will receive from the 3G gateway of Calling Side.
2. video telephone communication system as claimed in claim 1, is characterized in that, described sip server is identified video call according to the field in the SDP message of the 3G gateway transmission of Calling Side.
3. video telephone communication system as claimed in claim 2, is characterized in that, described sip server is identified video call according to bearer types and medium type in the SDP message of the 3G gateway transmission of Calling Side.
4. video telephone communication system as claimed in claim 2, it is characterized in that, after described sip server is identified video call according to the field in the SDP message of the 3G gateway transmission of Calling Side, the SDP message of the 3G gateway of Calling Side transmission is transparent to the 3G gateway of callee side.
5. video telephone communication system as claimed in claim 4, is characterized in that, the video media stream that described sip server also sends the 3G gateway of Calling Side/callee side is transparent to the 3G gateway of callee side/Calling Side.
6. a video telephone communication method, is characterized in that, comprising:
Send video call as the 3G terminal of caller to the 3G gateway of Calling Side;
The 3G gateway of Calling Side sends video call to sip server;
The video call that sip server will receive from the 3G gateway of Calling Side is routed to the 3G gateway of callee side.
7. video telephone communication method as claimed in claim 6, is characterized in that, also comprises:
The 3G gateway of callee side sends video call to the 3G terminal as called;
As the 3G terminal of called 3G terminal response as caller, as the 3G terminal of caller realize with 3G terminal as called between video calling be connected.
8. video telephone communication method as claimed in claim 7, is characterized in that, described 3G terminal as caller comprises to the 3G gateway transmission video call of Calling Side:
Send the request of CS64K video traffic as the 3G terminal of caller to the 3G gateway of Calling Side;
The 3G gateway of Calling Side sends CS64K video traffic setup requests to the 3G terminal as caller;
3G terminal as caller has carried out the video call processing messages to the 3G gateway transmission of Calling Side.
9. video telephone communication method as claimed in claim 8, it is characterized in that, after the 3G terminal as caller sends the request of CS64K video traffic to the 3G gateway of Calling Side, before the 3G gateway of Calling Side sent CS64K video traffic setup requests to the 3G terminal as caller, described 3G terminal as caller also comprised to the 3G gateway transmission video call of Calling Side:
The 3G gateway of Calling Side sends authentication request message to the 3G terminal as caller;
Send authentication response message as the 3G terminal of caller to the 3G gateway of Calling Side;
The 3G gateway of Calling Side sends the safe mode request message to the 3G terminal as caller;
Send security mode response message as the 3G terminal of caller to the 3G gateway of Calling Side.
10. video telephone communication method as claimed in claim 8, is characterized in that, the 3G gateway of described Calling Side sends video call to sip server and comprises:
The 3G gateway of Calling Side sends call request message to sip server, and described call request message comprises sip server can identify the SDP message of video call according to this.
11. video telephone communication method as claimed in claim 10, it is characterized in that, send call request message at the 3G of Calling Side gateway to sip server, described call request message comprises after sip server can identify the SDP message of video call according to this, and the 3G gateway of described Calling Side sends video call to sip server and also comprises:
Sip server sends authentication request message to the 3G gateway of Calling Side;
The 3G gateway of Calling Side sends authentication response message to sip server.
12. video telephone communication method as claimed in claim 10, is characterized in that, the 3G gateway that the video call that described sip server will receive from the 3G gateway of Calling Side is routed to callee side comprises:
Sip server sends call request message to the 3G gateway of callee side, and described call request message comprises SDP message, and described SDP message is that the SDP message that sip server directly will receive from the 3G gateway of Calling Side carries;
The 3G gateway of callee side sends the calling procedure Indication message to sip server;
Sip server sends the calling procedure Indication message to the 3G gateway of Calling Side.
13. video telephone communication method as claimed in claim 12, is characterized in that, the 3G gateway of described callee side sends video call to the 3G terminal as called and comprises:
The 3G gateway of callee side sends beep-page message to the 3G terminal as called;
As the 3G gateway transmission page-response message of called 3G terminal to callee side;
The 3G gateway of callee side sends CS64K video traffic setup requests to the 3G terminal as called;
Carry out video call as called 3G terminal to the 3G gateway transmission of callee side and processed acknowledge message.
14. video telephone communication method as claimed in claim 13, it is characterized in that, at the 3G terminal as called after the 3G gateway of callee side sends page-response message, before the 3G gateway of callee side sent CS64K video traffic setup requests to the 3G terminal as called, the 3G gateway of described callee side sent video call to the 3G terminal as called and also comprises:
The 3G gateway of callee side sends authentication request message to the 3G terminal as called;
As the 3G gateway transmission authentication response message of called 3G terminal to callee side;
The 3G gateway of callee side sends the safe mode request message to the 3G terminal as called;
As the 3G gateway transmission security mode response message of called 3G terminal to callee side;
The 3G gateway of callee side sends interim identification code relocation command to the 3G terminal as called;
Complete message as called 3G terminal to the interim identification code reallocation of the 3G gateway transmission of callee side.
15. video telephone communication method as claimed in claim 13, is characterized in that, and is described as the 3G terminal of called 3G terminal response as caller, as the 3G terminal of caller realize with 3G terminal as called between video calling be connected and comprise:
As the 3G gateway transmission ALERTING message of called 3G terminal to callee side;
The 3G gateway of callee side sends ALERTING message to sip server;
Sip server sends ALERTING message to the 3G gateway of Calling Side;
The 3G gateway of Calling Side sends ALERTING message to the 3G terminal as caller.
16. video telephone communication method as claimed in claim 15, is characterized in that, at the 3G terminal as the called response 3G terminal as caller, as the 3G terminal of caller realize with 3G terminal as called between video calling be connected after, also comprise:
As the 3G gateway transmission offhook message of called 3G terminal to callee side;
The 3G gateway of callee side sends offhook message to sip server;
The 3G gateway of callee side sends the off-hook acknowledge message to the 3G terminal as called;
Sip server sends the off-hook response message to the 3G gateway of callee side;
Sip server sends as called 3G terminal offhook message to the 3G gateway of Calling Side;
The 3G gateway of Calling Side sends the off-hook response message to sip server;
The 3G gateway of Calling Side sends as called 3G terminal offhook message to the 3G terminal as caller;
Send the off-hook response message as the 3G terminal of caller to the 3G gateway of Calling Side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103453070A CN103402072A (en) | 2013-08-08 | 2013-08-08 | Videophone communication system and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103453070A CN103402072A (en) | 2013-08-08 | 2013-08-08 | Videophone communication system and method |
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| Publication Number | Publication Date |
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| CN103402072A true CN103402072A (en) | 2013-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013103453070A Pending CN103402072A (en) | 2013-08-08 | 2013-08-08 | Videophone communication system and method |
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| CN (1) | CN103402072A (en) |
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