CN1553676A - Method for holding common audio-video meeting via various protocol terminals - Google Patents
Method for holding common audio-video meeting via various protocol terminals Download PDFInfo
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- CN1553676A CN1553676A CNA031409806A CN03140980A CN1553676A CN 1553676 A CN1553676 A CN 1553676A CN A031409806 A CNA031409806 A CN A031409806A CN 03140980 A CN03140980 A CN 03140980A CN 1553676 A CN1553676 A CN 1553676A
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Abstract
This invention discloses a method for holding the same video and audio conference by using multi protocol terminal. It includes following steps: the media control unit sends calling message to soft switching device, the soft switching device converts the calling message into the calling message of the relevant protocol type, then sends it to the relevant protocol terminal; after building the calling channel with the terminal through the route calling type of soft switching, the media control unit builds the media information channel with the terminal; the media control unit sends the media information to receiving terminal of the media information channel, and sends the processed media information to the relevant terminal.
Description
Technical field
The present invention relates to field of multimedia communication, be meant that especially one kind of multiple protocol terminals carry out the method for same audio/video conference.
Background technology
Along with the develop rapidly of telecommunication service, the audio/video conference technology has obtained certain development and has popularized.These two kinds of meetings can both make that the user is home-confined just can to hold a meeting easily, discuss and exchange.At present, audio/video conference is followed mainly is consensus standard H.320 and H.323, can make PSTN (PSTN) terminal and terminal-joined audio/video conference H.323 by gateway (GW) H.323.
Along with emerging in an endless stream and the continuous development of data service of new business, traditional circuit-switched network will progressively be substituted by next generation network (NGN).Meanwhile, also more and more based on the terminal of newborn agreement, for example Media Gateway Control Protocol terminal, initial session protocol (SIP) terminal, terminal etc. H.323.How terminal at these different agreements finishes intercommunication in same audio/video conference, will become the problem that must solve in the new generation network design.
Summary of the invention
In view of this, the object of the present invention is to provide one kind of multiple protocol terminals to carry out the method for same audio/video conference, the various protocols terminal is communicated in same audio/video conference.
In order to achieve the above object, the invention provides the method that one kind of multiple protocol terminals carry out same audio/video conference, the method includes the steps of:
A, media control unit send call information to Softswitch, Softswitch is converted to call information the terminal that sends to the respective protocol type behind the call information of respective protocol type, media control unit is by Softswitch routing call mode, behind the calling passage of foundation and terminal room, set up the media information passage of media control unit and terminal room; Media control unit is set up calling passage with terminal room by Softswitch routing call mode, is equivalent to media control unit and terminal and sets up respectively at Softswitch and call out passage;
The media information that B, media control unit send by media information passage receiving terminal, and the media information after will handling sends to corresponding terminal.
Preferably, this method further comprises step C: media control unit sends call release information to Softswitch, Softswitch is according to the call identifier that carries in the call release information, be the terminal that sends to the respective protocol type after the call release information of respective protocol type again with the call release information translation, discharge being connected and calling out being connected of passage of media information passage of media control unit and terminal room.
Described endpoint registration is in Softswitch, and Softswitch is stored log-on message.
Described log-on message comprises: termination number, with the internet protocol address and the port of the corresponding terminal type of this termination number, this terminal receipt of call.
Described steps A further comprises: media control unit is the carried terminal number in the call information that Softswitch sends, Softswitch is according to the log-on message of terminal, find with the corresponding terminal of this termination number under protocol type, the internet protocol address and the port of this terminal receipt of call, then call information is converted to the call information of this protocol type.
Described media control unit is registered in Softswitch.
This method further comprises: Softswitch judges by authentication mechanism whether media control unit is legal node, if media control unit successfully is registered in Softswitch; Otherwise, the registration of Softswitch refusal media control unit.
Described step B further comprises: media control unit according to media information format specification media information is handled, send to corresponding terminal then.
Further comprise before the described step C: terminal sends the call release request to Softswitch, and Softswitch is converted to the H.323 call release request of protocol type with this call request, sends the call release request to media control unit then.
This method further comprises: the mind-set media control unit issues conferencing information in the conference management.
This method further comprises: the meeting control terminal sends conferencing information to Softswitch, and Softswitch sends conferencing information to the conference management center, and the mind-set media control unit issues conferencing information in the conference management.
Described step C takes a step forward and comprises: terminal sends the call release request to Softswitch, and Softswitch is converted to the H.323 call release request of protocol type with this call request, sends the call release request to media control unit then; Further comprise behind the described step C: media control unit and the terminal transfer medium information that does not send the call release request.
Method by the present invention proposes can make the same audio/video conference of various protocols terminal-joined, has realized the communication of various protocols terminal room, helps the NGN networks development.
Description of drawings
Fig. 1 is a system configuration schematic diagram of realizing the various protocols terminals joining the conference according to NGN network of the present invention;
Fig. 2 is for carrying out the schematic diagram of same audio/video conference according to various protocols terminal of the present invention;
Fig. 3 is according to audio/video conference overall flow figure of the present invention;
The flow chart that Fig. 4 registers on Softswitch for MCU;
Fig. 5 is for being established to the flow chart of dispose procedure according to the same H.323 terminal call of MCU of the present invention;
Fig. 6 is with the flow chart of sip terminal call setup to dispose procedure according to MCU of the present invention;
Fig. 7 is for being established to the flow chart of dispose procedure with the MGCP terminal call according to MCU of the present invention;
Fig. 8 is with the mutual schematic diagram of the media information of all kinds of protocol terminals according to MCU of the present invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.
The basic meaning of soft switch is separated CCF exactly from media gateway (transport layer), realize the basic call controlled function by software, comprise call routing, address resolution, management control, connect control (foundation/dismounting session) and signalling interworking, thereby realize call transfer and call out separating of control, set up the plane of separating for control, exchange and software programmable function.The main design philosophy of Softswitch technology is to connect by standard agreement between business, control, transmission, access separation, the entity and to communicate by letter, meanwhile, soft switch is also got up encapsulation such as Internet resources, network capabilities, business interface by standard open links to each other with service application layer, thereby new business can be provided in network easily apace.
Softswitch is the nucleus equipment of circuit-switched network to packet switching network evolution, also is one of visual plant of Next Generation Telecommunication Networks network.Softswitch is the set of multiple logical functional entity, and it provides calling control, connection and the partial service function of integrated service, is the nucleus equipment that Next Generation Telecommunication Networks network voice/data/video service call, control, business provide.Softswitch is independent of the bottom bearing protocol, mainly finish major functions such as calling out control, media gateway access control, resource allocation, protocol processes, route, authentication, charging, and business and diversified third party's business that can provide the available circuit switch to provide to the user.
In Softswitch, can finish H.323 two two intercommunicatings between terminal, MGCP terminal, sip terminal and narrowband terminal, and can finish the H.323 registration and the management of terminal, MGCP terminal, sip terminal and narrowband terminal.The present invention describes all kinds of protocol terminals realization of Communication method in same audio/video conference on this basis.
The present invention mainly is the problem that the various protocols terminal is participated in audio/video conference simultaneously that solves on the basis of Softswitch, by adopting media control unit (MCU) to cooperate Softswitch to finish the communication of various bandwidth protocol terminals in audio/video conference, adopt the purpose of MCU to be to gather the media information that each terminal is sent, therefore in the present invention, MCU is equivalent to the media information switch.
Fig. 1 is a system configuration schematic diagram of realizing the various protocols terminals joining the conference according to NGN network of the present invention, as shown in Figure 1, all kinds of protocol terminals, for example MGCP terminal 104, H.323 all registrations on Softswitch 103 such as terminal 105, sip terminal 106, log-on message comprise the signaling address of termination number, terminal receipt of call, with the corresponding terminal type of this termination number etc.MCU 102 also is registered on the Softswitch 103.For MCU 102, Softswitch 103 is equivalent to gatekeeper (GK, Gate Keeper), finish GK address resolution, call out function such as control, the direct and Softswitch 103 of MCU 102 carries out RAS message, Q.931 message and the H.245 transmission of message.When H.323 MCU 102 called out terminal 105, Softswitch 103 was equivalent to GK, finish GK address resolution, call out function such as control.When MCU 102 called out MGCP terminals 104 or sip terminal 106, Softswitch 103 was equivalent to gateway (GW, Gate Way) and GK, finish the protocol conversion of GW and GK address resolution, call out function such as control.
Conference management center (SMC) 101 is as the back-stage management equipment of MCU 102, on the one hand, SMC 101 carries out the exchange of private message with MCU 102, and private message is carried on the transmission control protocol (TCP), is used to control the action of MCU 102 and issues conference commands to MCU 102; On the other hand, SMC 101 carries out the exchange of private message with Softswitch 103, and Softswitch 103 issues conferencing information by SMC 101 to MCU 102.Conferencing information generally comprises: the quantity of the terminal of attending a meeting, and the number of each terminal, password, spendable bandwidth in the meeting, is audio conferencing or video conference or audio/video conference at conference type, whether supports data conferencing, whether supports many picture functions etc.MCU 102 operates accordingly according to the conferencing information of receiving, and calls out the terminals joining the conference of respectively attending a meeting.
Fig. 2 as shown in Figure 2, at first introduces the following part of dotted line for carry out the schematic diagram of same audio/video conference according to various protocols terminal of the present invention, the initial conferencing information of configuration in SMC 101, and SMC101 is handed down to MCU 102 with meeting information.MCU 102 calls out all kinds of protocol terminals of participating in video conference.MCU 102 sends call information to Softswitch 103, carries the number of terminal called in the call information; After Softswitch 103 is received call information, log-on message according to all kinds of protocol terminals finds and the corresponding terminal type of this termination number, the i.e. protocol type supported of this terminal, the call information that MCU 102 is sent is converted to the call information with the corresponding protocol type of terminal type then, and the call information with this protocol type sends to corresponding terminal again.Because the message of transmitting between MCU and Softswitch is followed H.323 agreement, so when if H.323 MCU calls out the terminal-joined audio/video conference, Softswitch only needs forwards that MCU is sent to get final product to terminal H.323, needn't the transforming message type.When if MCU 102 calls out other protocol type terminals beyond the terminal H.323, for example, when MCU 102 calling SIP terminals 106 are participated in audio/video conference, MCU 102 sends to Softswitch 103 with call information, Softswitch 103 is according to the termination number that carries in the call information of receiving, find with the corresponding terminal type of this termination number be sip terminal, the call information that MCU 102 is sent transfers the call information of Session Initiation Protocol type to, and the call information with the Session Initiation Protocol type is sent to sip terminal 106 then.
After setting up the media information passage of media information, access success, MCU 102 reports conferencing information to SMC 101, is handled by 102 pairs of media informations of MCU, sends to corresponding terminal as required, carries out the communication of each terminal room in the audio/video conference.
When finishing audio/video conference, SMC 101 sends the closing session order to MCU 102, and the calling that MCU 102 discharges each terminal finishes current audio/video conference.MCU 102 sends the call release order to Softswitch 103, Softswitch 103 is call release order with the corresponding protocol type of terminal type with the call release command conversion then, call release order with this protocol type sends to corresponding terminal again, last corresponding terminal call release finishes current audio/video conference.
As another kind of technical scheme of the present invention, in conjunction with the part more than the dotted line, one time audio/video conference can be initiated by terminal, and the terminal that can initiate audio/video conference is called meeting control terminal 201.Meeting control terminal 201 sends conferencing information to Softswitch 103, Softswitch 103 sends the conferencing information of receiving to SMC101 then, SMC 101 issues the conferencing information of receiving to MCU 102, and MCU102 receives that the processing procedure of processing procedure behind the conferencing information and above-mentioned non-optional part is basic identical.When meeting control terminal 201 control MCU 102, whether MCU 102 is authorized to by password authentification meeting control terminal 201, if the password that meeting control terminal 201 provides is consistent with the password of SMC 101 in the conferencing information that MCU102 issues, then allow 201 couples of MCU 102 of meeting control terminal to control; Otherwise, the control of 201 couples of MCU 102 of refusal meeting control terminal.
Fig. 3 is that as shown in Figure 3, the overall flow of audio/video conference may further comprise the steps according to audio/video conference overall flow figure of the present invention:
Step 301～step 302:SMC issues conferencing information to MCU, after MCU receives conferencing information, sends the conferencing information response to SMC, and notice SMC has received conferencing information.
Step 303～step 308:MCU sends the call information of initiating to terminal 1 to Softswitch, Softswitch is converted to call information with the corresponding protocol type of terminal 1 type with the call information of receiving, the call information with this protocol type sends to terminal 1 then; MCU sends the call information of initiating to terminal 2 to Softswitch, and Softswitch is converted to call information with the corresponding protocol type of terminal 2 types with the call information of receiving, the call information with this protocol type sends to terminal 2 then; The rest may be inferred, and MCU sends the call information of initiating to terminal n to Softswitch, and Softswitch is converted to call information with the corresponding protocol type of terminal n type with the call information of receiving, the call information with this protocol type sends to terminal n then.Carry call identifier in call information, call identifier is represented point-to-point calling relation, in order to distinguish the calling that MCU and each terminal are set up.
Step 309:MCU reports conferencing information to SMC, for example to whether success of the calling of the terminal of participating in audio/video conference, participates in number of audio/video conference terminal or the like.
1 at step 310～step 312:MCU and terminal are set up media information passage 1, and MCU and terminal 1 are carried out the media information transmission by media information passage 1; 2 at MCU and terminal are set up media information passage 2, and MCU and terminal 2 are carried out the media information transmission by media information passage 2, and the rest may be inferred, sets up media information passage n between MCU and terminal n, and MCU and terminal n are carried out the media information transmission by media information passage n.
Step 313～step 318:MCU sends to Softswitch and discharges terminal 1 call information, release terminal 1 call information that Softswitch will be received is converted to release terminal 1 call information with the corresponding protocol type of terminal 1 type, release terminal 1 call information with this protocol type sends to terminal 1 then, 1 call release of MCU and terminal; MCU sends to Softswitch and discharges terminal 2 call informations, release terminal 2 call informations that Softswitch will be received are converted to release terminal 2 call informations with the corresponding protocol type of terminal 2 types, release terminal 2 call informations with this protocol type send to terminal 2 then, 2 call releases of MCU and terminal; The rest may be inferred, MCU sends to Softswitch and discharges the terminal n call information, the release terminal n call information that Softswitch will be received is converted to the release terminal n call information with the corresponding protocol type of terminal n type, release terminal n call information with this protocol type sends to terminal n then, call release between MCU and terminal n so far discharges participating in the calling of audio/video conference corresponding terminal.Carry the respective call identifier in the call release information, Softswitch is determined the calling that needs discharge according to this call identifier.
For MCU, Softswitch is equivalent to GK, finish GK address resolution, call out function such as control, so MCU is with before the Softswitch realization is communicated by letter, MCU must register on Softswitch.
The flow chart that Fig. 4 registers on Softswitch for MCU, as shown in Figure 4, the process that MCU registers on Softswitch may further comprise the steps:
Step 403～step 404:MCU sends the lightweight rrq message to Softswitch, after Softswitch is received the lightweight rrq message, sends RCF message to MCU, and said process is used for MCU notice Softswitch, and it is in existing state, does not crash.
Because the flow process that MCU registers on Softswitch is followed H.323 agreement, the message of transmission is also followed the H.323 agreement regulation of standard, therefore, does not need to be described in detail herein.
Because when H.323 MCU called out terminal, Softswitch was equivalent to GK, finish GK address resolution, call out function such as control; When MCU calls out MGCP terminal or sip terminal, Softswitch is equivalent to GW and GK, finish the protocol conversion of GW and GK address resolution, call out function such as control, therefore the terminal of each respective protocol type also needs register on Softswitch, and endpoint registration comprises in the log-on message of Softswitch: the number of terminal, with procotol (IP) address and the port of the corresponding terminal type of this termination number, this terminal receipt of call.
Fig. 5 is for being established to the flow chart of dispose procedure according to the same H.323 terminal call of MCU of the present invention, as shown in Figure 5, the process that the same H.323 terminal call of MCU is established to release may further comprise the steps:
Above-mentioned each message is all carried call identifier.
After step 513～step 514:MCU receives Connect message, H.245 address according to the H.323 terminal of carrying in the Connect message, finish the H.245 transmitting-receiving of message with terminal H.323, finish that the principal and subordinate determines, ability is mutual and open the function of logical channel by process H.245, this process is followed the H.245 consensus standard in the system H.323.H.245 after passage is set up, MCU sets up the media information passage with terminal H.323, and MCU receives the media information that terminal H.323 sends by the media information passage, after MCU handles the media information of receiving, send to H.323 terminal by the media information passage, carry out the media information transmission.
Step 523～step 525:MCU sends to Softswitch and discharges Q.931 message (ReleaseComplete), carries call identifier in this ReleaseComplete message; Softswitch also can send ReleaseComplete message to MCU equally.After Softswitch is received ReleaseComplete message, according to call identifier to accordingly H.323 terminal transmit ReleaseComplete message, close and Q.931 call out passage.MCU and H.323 terminal simultaneously send DRQ message to Softswitch, carry call identifier in this DRQ message, after Softswitch is received DRQ message, respectively to MCU and H.323 terminal send DCF message, carry call identifier in the DCF message, so far finish MCU the H.323 calling of terminal.
Fig. 6 be according to MCU of the present invention with the flow chart of sip terminal call setup to dispose procedure, as shown in Figure 6, MCU may further comprise the steps to the process that discharges with the sip terminal call setup:
Step 601～step 602 is basic identical with step 501～step 502.
Step 603～step 610:MCU sends Setup message to Softswitch, carry called terminal number, call identifier etc. in the Setup message, Softswitch is according to log-on message, find IP address with the corresponding terminal type of this called terminal number and this terminal, find that this terminal called is a sip terminal, Softswitch is to send to sip terminal after the Invite message with the Setup message conversion; After sip terminal is received Invite message, send 100 responses to Softswitch; After Softswitch is received 100 responses, 100 responses are sent to MCU after being converted to CallProceeding message.Sip terminal sends 180 responses to Softswitch, after Softswitch is received 180 responses, sends to MCU after 180 responses are converted to Alerting message.Sip terminal sends 200 message (withSDP) to Softswitch, comprises SDP information in 200 message, for example the media information of SIP side and port; After Softswitch is received 200 message (with SDP), send to MCU after 200 message (with SDP) are converted to Connect message.
Above-mentioned each message is all carried call identifier.
After step 611～step 613:MCU receives Connect message, Softswitch is finished the H.245 transmitting-receiving of message with MCU, H.245 after passage was set up, Softswitch sent ACK message (with SDP) to sip terminal, comprised the media information of MCU side in the ACK message (with SDP).MCU and sip terminal are set up the media information passage, and MCU receives the media information that sip terminal sends by the media information passage, and MCU sends to sip terminal by the media information passage after the media information of receiving is handled, and carry out the media information transmission.
Step 614～step 621:MCU sends to Softswitch and closes local terminal transmission media information path message (CloseLogicalChannel), notice Softswitch MCU has closed the passage that it sends media information, send request the other side to Softswitch simultaneously and close transmission media channel message (RequestCloseLogicalChannel), the request Softswitch is closed the passage that it sends media information; Softswitch sends request the other side to MCU and closes transmission media channel response message (RequestCloseLogicalChannelAck), closes the passage that local terminal sends media information.Softswitch sends CloseLogicalChannel message to MCU.MCU sends to Softswitch and closes local terminal transmission media information channel response message (CloseLogicalChannelAck); Softswitch sends CloseLogicalChannelAck message to MCU.MCU and Softswitch are sent out mutually and are closed H.245 path message (EndSessionCommand), and request the other side closes H.245 passage.
Step 622～step 627:MCU sends to Softswitch and discharges Q.931 message (ReleaseComplete), carries call identifier in this ReleaseComplete message; Softswitch also can send ReleaseComplete message to MCU equally, closes and Q.931 calls out passage.After Softswitch is received ReleaseComplete message, send BYTE message according to the call identifier that carries in this ReleaseComplete message to corresponding sip terminal, receive 200 response messages that sip terminal sends then, sip terminal discharges the media information passage and discharges current calling.MCU sends DRQ message to Softswitch, carries call identifier in this DRQ message, and Softswitch sends DCF message to MCU then, carries call identifier in the DCF message, so far finishes the calling of MCU to sip terminal.
Fig. 7 is for being established to the flow chart of dispose procedure according to MCU of the present invention with the MGCP terminal call, and as shown in Figure 7, MCU may further comprise the steps with the process that the MGCP terminal call is established to release:
Step 701～step 702 is basic identical with step 501～step 502.
Step 703～step 710:MCU sends Setup message to Softswitch, carry called terminal number, call identifier etc. in the Setup message, Softswitch is according to log-on message, find IP address with the corresponding terminal type of this called terminal number and this terminal, find that this terminal called is the MGCP terminal, Softswitch sends to the MGCP terminal with the Setup message conversion for CRCX message.Softswitch sends CallProceeding message to MCU.The MGCP terminal sends Rps message to Softswitch, after Softswitch is received Rps message, is to send to MCU after the Alerting message with the Rps message conversion.The MGCP terminal sends Notify (Off-hook) message to Softswitch, carries the media capability of MGCP terminal in Notify (Off-hook) message; After Softswitch is received Notify (Off-hook) message, be to send to MCU after the Connect message with Notify (Off-hook) message conversion, Softswitch sends RQNT (On-hook) message to the MGCP terminal then.
Above-mentioned each message is all carried call identifier.
After step 711～step 713:MCU received Connect message, Softswitch was finished the H.245 transmitting-receiving of message with MCU, and after H.245 passage was set up, Softswitch sent MDX message to the MGCP terminal, and MDX message is carried the media information of MCU side.MCU and MGCP terminal are set up the media information passage, and MCU receives the media information that the MGCP terminal sends by the media information passage, and MCU sends to the MGCP terminal by the media information passage after the media information of receiving is handled, and carry out the media information transmission.
Step 714～step 721:MCU sends to Softswitch and closes local terminal transmission media information path message (CloseLogicalChannel), notice Softswitch MCU has closed the passage that it sends media information, send request the other side to Softswitch simultaneously and close transmission media channel message (RequestCloseLogicalChannel), the request Softswitch is closed the passage that it sends media information; Softswitch sends request the other side to MCU and closes transmission media channel response message (RequestCloseLogicalChannelAck), closes the passage that local terminal sends media information.Softswitch sends CloseLogicalChannel message to MCU.MCU sends to Softswitch and closes local terminal transmission media information channel response message (CloseLogicalChannelAck); Softswitch sends CloseLogicalChannelAck message to MCU.MCU and Softswitch are sent out mutually and are closed H.245 path message (EndSessionCommand), and request the other side closes H.245 passage.
MCU sends ReleaseComplete message to Softswitch, carries identifier in the ReleaseComplete message, and Softswitch also can send ReleaseComplete message to MCU equally, closes and Q.931 calls out passage.Softswitch sends DLCX according to the identifier that carries in the ReleaseComplete message to corresponding M GCP terminal, and (+RQNT) (Busy Tone) message, the MGCP terminal sends DLCX Resp message to Softswitch.The MGCP terminal sends Notify (OnHook) message to Softswitch, after Softswitch is received Notify (OnHook) message, sends Notify Resp message, RQNT (R:OffHook) message and RQNT Resp message to the MGCP terminal.MCU sends DRQ message to Softswitch, and DRQ message is carried identifier, and Softswitch sends DCF message to MCU then, and DCF message is carried identifier, so far finishes being connected of MCU and MGCP terminal.
Step 722～step 731:MCU sends to Softswitch and discharges Q.931 message (ReleaseComplete), carries call identifier in this ReleaseComplete message; Softswitch also can send ReleaseComplete message to MCU equally, closes and Q.931 calls out passage.After Softswitch is received ReleaseComplete message, send deletion bind command (DLCX) according to the call identifier that carries in this ReleaseComplete message to corresponding M GCP terminal, the MGCP terminal discharges the media information passage and discharges current calling; Simultaneously, Softswitch is to corresponding M GCP terminal send a request message [+RQNT (Busy Tone)].MCU sends DRQ message to Softswitch, carries call identifier in this DRQ message.The MGCP terminal sends DLCX response message (DLCX Resp) to Softswitch.Softswitch sends DCF message to MCU, carries call identifier in the DCF message.The MGCP terminal sends notification command [Notify (OnHook)] to Softswitch after on-hook, OnHook is meant that onhook event takes place.After Softswitch is received Notify (OnHook) message, to the MGCP terminal send Notify response message (Notify Resp) and if ask MGCP terminal off-hook event to take place, send RQNT (R:OffHook) message to Softswitch; Softswitch sends RQNT Resp message to the MGCP terminal.Softswitch sends DCF message to MCU, and DCF message is carried call identifier, so far finishes the calling of MCU to the MGCP terminal.
Fig. 8 is with the mutual schematic diagram of the media information of all kinds of protocol terminals according to MCU of the present invention, as shown in Figure 8, MCU 102 follows real-time transport protocol (rtp) alternately with the media information of all kinds of protocol terminals, and all kinds of protocol terminals directly send to MCU 102 with media information.After MCU 102 receives the media information of each terminal transmission, handle as required, for example MCU 102 receives MGCP terminal 104, the media information of terminal 105 and sip terminal 106 H.323 respectively, MCU 102 only handles the media information of the sip terminal 106 received as required, sends to each terminal of participating in audio/video conference then.
When holding audio/video conference, add certain or some terminals if desired and add audio/video conference, only need to issue corresponding information to MCU by SMC, the processing procedure of MCU and process noted earlier are basic identical.
When the terminal of certain participation audio/video conference is withdrawn the membership, this hanging up terminal for example, will send the call release request to Softswitch, soft switch sends to MCU after the call release request being converted to the call release information of protocol type H.323, the subsequent processes of MCU and the processing procedure of above-mentioned call release are basic identical, need only terminal type is corresponding get final product.
The terminal of other protocol types beyond can supporting described in the literary composition according to the method for the present invention's proposition is participated in audio/video conference simultaneously.
In a word, the above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.
Claims (12)
1, one kind of multiple protocol terminals carry out the method for same audio/video conference, it is characterized in that the method includes the steps of:
A, media control unit send call information to Softswitch, Softswitch is converted to call information the terminal that sends to the respective protocol type behind the call information of respective protocol type, media control unit is by Softswitch routing call mode, behind the calling passage of foundation and terminal room, set up the media information passage of media control unit and terminal room;
The media information that B, media control unit send by media information passage receiving terminal, and the media information after will handling sends to corresponding terminal.
2, method according to claim 1, it is characterized in that this method further comprises step C: media control unit sends call release information to Softswitch, Softswitch is according to the call identifier that carries in the call release information, be the terminal that sends to the respective protocol type after the call release information of respective protocol type again with the call release information translation, discharge being connected and calling out being connected of passage of media information passage of media control unit and terminal room.
3, method according to claim 1 is characterized in that: described endpoint registration is in Softswitch, and Softswitch is stored log-on message.
4, method according to claim 3 is characterized in that, described log-on message comprises: termination number, with the internet protocol address and the port of the corresponding terminal type of this termination number, this terminal receipt of call.
5, method according to claim 4, it is characterized in that described steps A further comprises: media control unit is the carried terminal number in the call information that Softswitch sends, Softswitch is according to the log-on message of terminal, find with the corresponding terminal of this termination number under protocol type, the internet protocol address and the port of this terminal receipt of call, then call information is converted to the call information of this protocol type.
6, method according to claim 1 is characterized in that, described media control unit is registered in Softswitch.
7, method according to claim 6 is characterized in that this method further comprises: Softswitch judges by authentication mechanism whether media control unit is legal node, if media control unit successfully is registered in Softswitch; Otherwise, the registration of Softswitch refusal media control unit.
8, method according to claim 1 is characterized in that described step B further comprises: media control unit according to media information format specification media information is handled, send to corresponding terminal then.
9, method according to claim 2, it is characterized in that further comprising before the described step C: terminal sends the call release request to Softswitch, Softswitch is converted to the H.323 call release request of protocol type with this call request, sends the call release request to media control unit then.
10, method according to claim 1, it is characterized in that this method further comprises: the mind-set media control unit issues conferencing information in the conference management.
11, method according to claim 10, it is characterized in that this method further comprises: the meeting control terminal sends conferencing information to Softswitch, Softswitch sends conferencing information to the conference management center, and the mind-set media control unit issues conferencing information in the conference management.
12, method according to claim 2, it is characterized in that described step C takes a step forward comprises: terminal sends the call release request to Softswitch, Softswitch is converted to the H.323 call release request of protocol type with this call request, sends the call release request to media control unit then; Further comprise behind the described step C: media control unit and the terminal transfer medium information that does not send the call release request.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA031409806A CN1553676A (en) | 2003-06-06 | 2003-06-06 | Method for holding common audio-video meeting via various protocol terminals |
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| CNA031409806A CN1553676A (en) | 2003-06-06 | 2003-06-06 | Method for holding common audio-video meeting via various protocol terminals |
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| CNA031409806A Pending CN1553676A (en) | 2003-06-06 | 2003-06-06 | Method for holding common audio-video meeting via various protocol terminals |
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| WO2006081726A1 (en) * | 2005-02-06 | 2006-08-10 | Zte Corporation | Multi-point video conference system and media processing method thereof |
| CN100420194C (en) * | 2006-10-08 | 2008-09-17 | 华为技术有限公司 | Video conference system and its data transmission method and device |
| WO2009052746A1 (en) * | 2007-10-16 | 2009-04-30 | Huawei Technologies Co., Ltd. | A method for initiating conferences, an application service proxy, a conference server and system |
| CN100546373C (en) * | 2006-04-29 | 2009-09-30 | 华为技术有限公司 | The implementation method of dialing set in multi-medium video-signal system |
| CN1859517B (en) * | 2005-10-20 | 2010-12-08 | 华为技术有限公司 | Click-to-call system of network telephone and its control method |
| CN101986696A (en) * | 2010-11-30 | 2011-03-16 | 上海华平信息技术股份有限公司 | Information transfer equipment and video conference system |
| CN101047748B (en) * | 2006-05-16 | 2011-09-14 | 华为技术有限公司 | Method of conference service |
| CN102244765A (en) * | 2011-07-05 | 2011-11-16 | 华平信息技术股份有限公司 | Multi-protocol-supported conference terminal interaction system and method |
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| CN101360091B (en) * | 2007-07-30 | 2011-11-30 | 中国电信股份有限公司 | Apparatus, system and method realizing session initial protocol terminal conference accessing |
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| CN103138984A (en) * | 2011-12-02 | 2013-06-05 | 中兴通讯股份有限公司 | Method and system of disaster recovery back serving call session control function |
| CN104168440A (en) * | 2014-08-11 | 2014-11-26 | 北京博通佳信科技有限责任公司 | Touchable type integrated video conference terminal and calling method |
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| CN116582638A (en) * | 2023-07-11 | 2023-08-11 | 深圳星网信通科技股份有限公司 | Conference terminal management method, conference terminal management device and computer readable storage medium |
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