CN101742005A - Method, system and network device for realizing conference segmentation services - Google Patents
Method, system and network device for realizing conference segmentation services Download PDFInfo
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- CN101742005A CN101742005A CN200810217252A CN200810217252A CN101742005A CN 101742005 A CN101742005 A CN 101742005A CN 200810217252 A CN200810217252 A CN 200810217252A CN 200810217252 A CN200810217252 A CN 200810217252A CN 101742005 A CN101742005 A CN 101742005A
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Abstract
The embodiment of the invention discloses a method, a system and a network device for realizing conference segmentation services. The method comprises the following steps: an access node receives a request for starting the conference segmentation services from the ISDN/PSTN user, realizes the signaling mapping of the ISDN/PSTN user from DSS1 to SIP and requests the execution of the conference segmentation operation from the AS; and the AS controls the MRFP to execute the conference segmentation operation according to the request of the access node and transmits the message of the successful conference segmentation to the segmented conference participant and other conference participants. The invention also provides a system and a network device for realizing the conference segmentation services. The scheme of the invention realizes the conference segmentation services of the ISDN/PSTN user on the basis of IMS network architecture.
Description
Technical field
The present invention relates to the communications field, relate in particular to based on the technology that realizes conference segmentation services under the IMS network architecture.
Background technology
IMS (IP Multimedia Subsystem, IP Multimedia System) be that (the Internet Protocol based on IP is provided in the next generation network, the subsystem of Multimedia session control Internet protocol), comprise the core network element that all provide multimedia service controls such as audio frequency, video, literal, instant message, adopt SIP (Session Initial Protocol, conversation initialized protocol) agreement is come bearing call control signaling as IMS key-course agreement, and unified multimedia service and application is provided.
Communication network is after evolving to the IMS network architecture, conventional I SDN (Integrated ServicesDigital Network, integrated services digital network)/traditional PSTN (Public Switched TelephoneNetwork, PSTN) user's business demand still can exist in a large number.And in the prior art, under the IMS network architecture, do not realize the technical scheme of ISDN/PSTN user's conference segmentation services.
Summary of the invention
Embodiment of the invention technical problem to be solved is, a kind of method and system that realize conference segmentation services are provided.Can under the IMS network architecture, realize conference segmentation services based on conventional I SDN/PSTN terminal.
The embodiment of the invention provides a kind of method that realizes conference segmentation services, is applied to comprise based in the integrated services digital network ISDN/ common exchanging telephone network PSTN network under the IP Multimedia System IMS network architecture:
Access node receives the SETUP message of the Digital Subscriber signalling No.1 DSS1 form of ISDN/PSTN user's transmission, and this SETUP message has been carried the information of beginning conference segmentation services information and divided conferenced party;
Access node generates first INVITE of Session initiation protocol SIP form according to the information of beginning conference segmentation services information in the SETUP message and divided conferenced party, application unified resource identifier Request URI in this first INVITE is the URI of divided conferenced party, To header field in this first INVITE is the URI of divided conferenced party, increase the header field of expression conference segmentation services in this first INVITE, the Session Description Protocol SDP information in this first INVITE is for initiating the SDP information of the meeting side of cutting apart;
Access node sends to application server AS with described first INVITE and carries out the meeting cutting operation with request.
The embodiment of the invention also provides a kind of system that realizes conference segmentation services, comprising:
Access node, application server AS and media resource processor MRFP;
The access node of initiating conference segmentation services side is used to receive the SETUP message of Digital Subscriber signalling No.1 DSS1 form, and generate first INVITE of Session initiation protocol SIP form according to the information of the information of the beginning conference segmentation services that carries in this message and divided conferenced party, application unified resource identifier Request URI in this first INVITE is the URI of divided conferenced party, To header field in this first INVITE is the URI of divided conferenced party, in this first INVITE, increase the header field of expression conference segmentation services, Session Description Protocol SDP information in this first INVITE is for initiating the SDP information of the meeting side of cutting apart, and send first INVITE to application server AS, carry out the meeting cutting operation with request;
AS is used for according to described request, and control media resource processor MRFP carries out the meeting cutting operation.
A kind of network equipment comprises:
Receiver module is used to receive the SETUP message of No. 1 digital signalling form;
Mapping block, be used for generating the INVITE of Session initiation protocol SIP form according to the information of the information of the beginning conference segmentation services of SETUP message and divided conferenced party, application unified resource identifier Request URI in this INVITE is the URI of divided conferenced party, To header field in this INVITE is the URI of divided conferenced party, increase the header field of expression conference segmentation services in INVITE, the Session Description Protocol SDP information in this INVITE is for initiating the SDP information of the meeting side of cutting apart;
Sending module is used to send mapping block and reflects and realize penetrating back message.
A kind of network equipment comprises:
Receiver module is used to receive the INVITE or the reINVITE message of conversation initialized protocol form;
Mapping block receives INVITE if be used for receiver module, and then the message that realizes according to the conference segmentation services in the described INVITE generates first NOTIFY of No. 1 digital signalling form, and the descriptor of first NOTIFY is 1000011; If receiver module receives reINVITE message, then the message that realizes according to the conference segmentation services in the reINVITE message generates second NOTIFY of No. 1 digital signalling form, and the descriptor of second NOTIFY is 1001001;
Sending module receives INVITE if be used for receiver module, then sends first NOTIFY, if receiver module receives reINVITE message, then sends second NOTIFY.
In an embodiment of the present invention, by definition, realize under the IMS framework conference segmentation services based on conventional I SDN/PSTN terminal to Signalling exchange and protocol extension between the signaling between DSS1 and SIP mapping and each operation controlling entity access node, the AS.
Description of drawings
Fig. 1 is the signaling process figure that the embodiment of the invention realizes the method for conference segmentation services;
Fig. 2 is the structural representation that the embodiment of the invention realizes the system of conference segmentation services;
Fig. 3 and Fig. 4 are the structural representations of network equipment in the embodiment of the invention.
Embodiment
The technical scheme that the embodiment of the invention provides, be in order to realize based in the ISDN/PSTN network under the IMS network architecture, the scene of ISDN/PSTN user's conference segmentation services, comprise signaling mapping between DSS1 (DigitalSubscriber signaling No.1, Digital Subscriber signalling No.1) and the SIP and the Signalling exchange between each operation controlling entity.Meeting is cut apart and is meant in the convention business of beginning, will be wherein certain meeting participant deletion temporarily from active conference, and allow itself and chairman side to converse separately.
The embodiment of the invention provides a kind of method that realizes conference segmentation services.Based on the IMS network architecture, access node can support analog subscriber signaling and digital user signalling at interior various traditional access style, the Digital Subscriber signalling No.1 DSS1 of termination user side, and the mapping of the signaling between realization DSS1 and the SIP.Concrete, access node comprises VGW (Voice over IP Gateway, voice gateways)/AGW (Access Gateway, IAD) functional entity, this VGW/AGW supports the CCF based on Session Initiation Protocol, the Digital Subscriber signalling No.1 DSS1 of its user side of realizing terminating, and the mapping of the signaling between DSS1 and the SIP.For example describes, the embodiment of the invention is applicable to other functional entitys with access node function to the embodiment of the invention too with MSAN (Multi-service Access Node, MSAN) with access node function.
Based on the IMS network architecture, AS (Application Server, application server) can provide value-added service for IMS user.In addition, AS can also provide value-added service for ISDN/PSTN user, for example AS comprises and serves as MRFC (Multimedia Resource Function Controller, media resource controller) functional entity, promptly play the MRFC identical functions, and control MRFP (Multimedia Resource FunctionProcessor, media resource processor) provides conferencing resource.Wherein, in the IMS network architecture, the major function of MRFC and MRFP functional module is as follows:
The function of MRFC: by H.248 controlling the media resource on the MRFP, resolve SIP resource control command, and will be converted to resource control command, and produce corresponding charge information from IMS user's SIP resource control command to MRFP from IMS user;
The function of MRFP: under MRFC control, provide resource service, comprise that Media Stream mixes (Multi-Party Conference), multimedia messages is play (playback, Streaming Media), media content dissection process (code conversion, speech recognition etc.).
The flow process that ISDN/PSTN user realizes conference segmentation services in the IMS network architecture as shown in Figure 1, the user who participates in a conference with 3 sides among Fig. 1 implements meeting and is divided into example and describes, and is equally applicable to other situations in many ways.Among Fig. 1, corresponding respectively conference segmentation services side, divided conferenced party and the pairing MSAN of other conferenced partys of initiating of MSAN A, MSAN B and MSAN C.In the embodiment of the invention, initiating conference segmentation services side is user A, is chairman side, and other two sides are common conferenced party, and user B and user C are cut apart away the divided user B of conferenced party from convention business, and detailed process is as follows:
S101, ISDN/PSTN user promptly initiate conference segmentation services side, are user A in the present embodiment, send a request message (SETUP) to MSAN A, and this message is to start conference segmentation services to the MSAN request, has wherein carried Facility IE message;
Wherein, can comprise two parts in the Facility IE message:
1) " SplitCONF Invoke " is used for to MSAN request beginning conference segmentation services;
2)“ARGUMENT?SEQUENCE{
Conference?Id，
Party Id} " be used for to MSAN represent cutting operation institute that needs carry out at the conferenced party of active conference; wherein Conference Id is the ID of current ongoing meeting, Party Id be request execution conference segmentation services at the ID of conferenced party (the divided conferenced party among Fig. 1).
After S102:MSAN receives messages sent by users,, learn that this user initiates conference segmentation services according to the information such as SplitCONF Invoke of carrying in the Facility IE message.Wherein, Facility IE is based on the information unit that carries in the message of DSS 1, MSAN according to the ConferenceId that carries among the Facility IE and Party Id determine meeting cut apart at the divided conferenced party of object (embodiment of the invention is that divided conferenced party is an example with user B), realize the signaling mapping of DSS1 to SIP, being about to the SETUP message maps is first INVITE, and sends first INVITE to AS.
DSS1 is as shown in table 1 to the concrete mapping relations of SIP:
Table 1
First INVITE is the type of message based on Session Initiation Protocol.Need in the embodiment of the invention change of INVITE is mainly comprised following a few part:
1) application unified resource identifier request URI (request Universal Resource Identifier) extends this as the URI of divided conferenced party (as the Remote UserB in the table 1).
2) To represents whom sends the request that meeting is cut apart to, and To header field is filled in the URI of divided conferenced party.
3) Call ID is a call identification, is the call identification of MSAN to the per call Random assignment; From, tag are the meeting identifications of initiating the meeting side of cutting apart.
4) need to increase the header field that conference segmentation services is carried out in expression in the INVITE request, as P-Service-Notification, we describe (can certainly adopt other text formatting) as shown in table 2 with ABNF (Augmented Backus-Naur Form, the Backus normal form (BNF) of enhancing) text formatting:
| ??P-Service-Notification＝″P-Service-Notification″??HCOLON?notification??notification????＝″conference-split″ |
Table 2
4) need to carry conference segmentation services side, the i.e. SDP of user A (Session Description Protocol, the Session Description Protocol) information initiated in the INVITE request.
INVITE request example such as table 3 based on above-mentioned requirements:
| ??INVITE?sip：123456@ABC.com；user＝phone?SIP/2.0??Call-ID：c006b979a8938e0683bcc9096ba308bc??From：<sip:+86755654321@ABC.com；user＝phone>；tag＝7f1f90f1??To：<sip:123456@ABC.com；user＝phone>??CSeq：1INVITE??Contact：<sip:+86755654321@10.71.46.34：5444；user＝phone>??Max-Forwards：70??Supported：100rel??P-Service-Notification：conference-split??Content-Length：...??Content-Type：application/sdp |
| ??SDP_UserA |
Table 3
After S103:MSAN receives user's SETUP message, reply a CALLPROCEEDING message, tell the user that it receives SETUP message to the user.
S104 and S105:AS are after receiving INVITE request, according to " conference-split " indication of carrying among the P-Service-Notification, control MRFP carries out the operation that meeting is cut apart, MRFP carries out the operation that meeting is cut apart, promptly controlling MRFP discharges the conferencing resource that divided conferenced party takies, and divided conferenced party is set to un-activation (inactive) state, detailed process is identical with the process of MRFP release conferencing resource in the prior art, repeats no more herein.
S106:AS is after receiving the INVITE request that MSAN A sends, according to " conference-split " indication of carrying among the P-Service-Notification, MSAN to divided conferenced party, be that MSAN B sends the 2nd NVITE message, this second INVITE is to tell divided conferenced party that it is cut apart away from meeting.
To second INVITE of the MSAN that sends to divided conferenced party require as follows:
1) Request URI fills out URI into divided conferenced party in this second INVITE;
2) fill out URI in the To header field into divided conferenced party;
3) need to increase the P-Service-Notification header field in the 2nd INVITE request, the message of wherein carrying be used for notifying divided conferenced party (user B) its cut apart away ABNF format description such as table 4 from convention business:
| ??P-Service-Notification＝″P-Service-Notification″?????????????????????????????????HCOLON?notification??notification????＝″conference-disconnected″ |
Table 4
4) need increase to carry the replaces header field in the 2nd INVITE request, this header field is represented the conferencing information of divided conferenced party, and the parameter that the replaces header field carries is the dialogue identifier that divided conferenced party uses in by the meeting of setting up before cutting apart;
5) need to carry conference segmentation services side, i.e. the SDP information of user A initiated in the 2nd INVITE request.
The 2nd INVITE request example such as table 5 based on above-mentioned requirements:
| ??INVITE?sip：123456@ABC.com；user＝phone?SIP/2.0??Call-ID：d432fa84b4c76e66710??From：<sip:3402934234@conffocus.com；user＝phone>；tag＝43524545??To：<sip:123456@ABC.com；user＝phone>??CSeq：1INVITE??Contact：<sip:3402934234@conffocus.com；user＝phone>；isfocus??Max-Forwards：70??Supported：100rel，replaces??Replaces：sdjfdjfskdf@ABC.com；to-tag＝5f35a3；from-tag＝8675309??P-Service-Notification：conference-disconnected??Content-Length：...??Content-Type：application/sdp??SDP_UserA |
Table 5
S107: the MSAN of divided conferenced party receives after the 2nd INVITE request, then to be notified to divided conferenced party to this request, at this moment, MSAN will be mapped as second INVITE based on Session Initiation Protocol the NOTIFY based on DSS1, and send this NOTIFY to divided conferenced party, notify it to be partitioned into convention business.Concrete mapping relations are as shown in table 6:
| ??DSS1 | ??SIP |
| ??←NOTIFY | ??←INVITE |
| ??Notification?indicator?IE | ??P-Service-Notification |
| Notification description (descriptor): | ??conference-disconnected |
| ??1000011(Conference??disconnected) |
Table 6
In the table 6, P-Service-Notification is mapped as Notification indicator IE, Notification indicator IE has carried Conference disconnected information, shows that divided conferenced party is divided into merit.
S108: the MSAN B of divided conferenced party returns a 200OK message to AS, and it has successfully received the 2nd INVETE message in the S106 step notice AS, has wherein carried the SDP information of divided conferenced party.
After S109 and S110:AS receive the 200OK message that the S108 step returns, return an ACK (Acknowledge Character to the MSAN of divided conferenced party B, acknowledge character) message, tell this MSAN B that it successfully receives, and return 200OK message to the MSAN A that initiates the meeting side of cutting apart, notify this MSAN A its received message in the S108 step, wherein carried the SDP information of divided conferenced party.
S111 and S112: after the MSANA that initiates the meeting side of cutting apart receives 200OK message in the S109 step, return CONNECT message for the initiation meeting side of cutting apart, wherein carry Facility IE, the information of carrying among the FacilityIE is splitCONF-retres, indicate divided conferenced party to the initiation meeting side of cutting apart and be divided into merit, and return an ACK message to AS.
S113: the MSAN B of divided conferenced party discharges the employed dialogue of conference participation before this according to the parameter information that carries in the replaces header field in second INVITE in the S106 step, and sends BYE message to AS.
S114:AS gives MSAN B with the result notification of carrying out the success of meeting cutting operation in S104 and the S105 step, promptly returns 200OK message and gives MSAN B.
After the INVITE request of S115:AS in receiving the S102 step, also need to send reINVITE and ask other participants, give other conferenced partys the message informing that the meeting segmentation services is realized to meeting.If other conferenced partys are a plurality of, send reINVITE message then for respectively each other conferenced party.
Require as follows to the reINVITE request that sends to other conferenced partys:
1) request URI filled out the URI into other conferenced partys during this reINVITE asked;
2) fill out URI in the To header field into other conferenced partys;
3) need to increase the P-Service-Notification header field in this reINVITE request, the parameter that this header field carries is the message that conference segmentation services is realized, and is as shown in table 7 with the ABNF format description:
| ??P-Service-Notification＝″P-Service-Notification″??????????????????????????????HCOLON?notification??notification????＝″other-party-split″ |
Table 7
ReINVITE request example based on above-mentioned requirements is as shown in table 8:
| ??INVITE?sip：111111@ABC.com；user＝phone?SIP/2.0??Call-ID：849392fklgl43??From：<sip:3402934234@conffocus.com；user＝phone>；tag＝5393k2312??To：<sip:111111@ABC.com；user＝phone>；tag＝32331??CSeq：10INVITE??Contact：<sip:3402934234@conffocus.com；user＝phone>；isfocus??Max-Forwards：70??Supported：100rel，replaces??P-Service-Notification：other-party-split??Content-Length：0 |
Table 8
S116: the MSAN C of other conferenced partys receives after the reINVITE request, need will be NOTIFY based on the reINVITE message maps of Session Initiation Protocol based on DSS1, and to other conferenced partys' transmission NOTIFY, concrete mapping relations are as shown in table 9:
| ??DSS1 | ??SIP |
| ??←NOTIFY | ??←reINVITE |
| ??Notification?indicator?IE | ??P-Service-Notification |
| ??Notification?description：??1001001(Other?party?split) | ??other-party-split |
Table 9
Other-party-split among the P-Service-Notification is mapped as Notification indicator IE message, and wherein Other party split notifies other conferenced party's conference segmentation services to realize.
S117 and S118:MSAN C return a 200OK message to AS, and AS returns an ACK message to MSAN C, all represent to receive the successful meaning.
The embodiment of the invention also provides a kind of system that realizes conference segmentation services, comprises access node, application server AS, media resource processor MRFP.
Access node represents with access node A, access node B and access node C that respectively respective user is initiated the access node of the meeting side of cutting apart, divided conferenced party and other conferenced partys respectively.
Wherein, access node A is used to receive the information SETUP of the beginning conference segmentation services that the user sends, this user is ISDN/PSTN user, and will be first INVITE based on the SETUP message maps of DSS1 based on SIP, concrete mapping relations are identical with method embodiment with implementation method, do not giving unnecessary details herein, and sending first INVITE to AS, to the requirement of this message with method embodiment.By the access node C of the access node B of the side of cutting apart and other conferenced partys be used to receive AS to its notification message that sends, and to this notification message realization mapping, be about to notification message that AS sends and be mapped as the DSS1 message that divided conferenced party and other conferenced partys can discern, the specific requirement of this notification message and implementation procedure with method embodiment, are no longer described in detail herein.
AS is used for the request according to access node A, and control MRFP carries out the meeting cutting operation, and with the result notification of meeting cutting operation success to by the side of cutting apart and other conferenced partys, to the detailed process of the requirement of notification message and notice with method embodiment.
MRFP is used to carry out the meeting cutting operation.
The embodiment of the invention also provides a kind of network equipment, comprises receiver module, mapping block and three modules of sending module, and these three modules can be integrated into MSAN MSAN.
Receiver module is used to receive the SETUP message of Digital Subscriber signalling No.1 form;
Mapping block, be used for generating the INVITE of Session initiation protocol SIP form according to the information of the information of the beginning conference segmentation services of above SETUP message and divided conferenced party, application unified resource identifier Request URI in this INVITE is the URI of divided conferenced party, To header field in this INVITE is the URI of divided conferenced party, increase the header field of expression conference segmentation services in this INVITE, the Session Description Protocol SDP information in this INVITE is for initiating the SDP information of the meeting side of cutting apart;
Sending module is used to send described INVITE.
The embodiment of the invention also provides a kind of network equipment, comprises receiver module, mapping block and three modules of sending module, and these three modules can be integrated among the MSAN MSAN.Wherein:
Receiver module is used to receive the INVITE or the reINVITE message of conversation initialized protocol form;
Mapping block receives INVITE if be used for receiver module, and then the message that realizes according to the conference segmentation services in the INVITE generates the NOTIFY of No. 1 digital signalling form, and the descriptor of this NOTIFY is 1000011; If receiver module receives reINVITE message, then the message that realizes according to the conference segmentation services in this reINVITE message generates the NOTIFY of No. 1 digital signalling form, and the descriptor of this NOTIFY is 1001001;
Sending module is used to send NOTIFY.
Technical scheme of the present invention by the definition to Signalling exchange and protocol extension between the signaling between DSS1 and SIP mapping and each operation controlling entity MSAN, the AS, realizes under the IMS framework conference segmentation services based on conventional I SDN/PSTN terminal.
One of ordinary skill in the art will appreciate that all or part of flow process that realizes in the foregoing description method, be to instruct relevant hardware to finish by computer program, described program can be stored in one or more computer read/write memory mediums, this program can comprise the flow process as the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only storage memory body (Read-OnlyMemory, ROM) or at random store memory body (Random Access Memory, RAM) etc.
Below only be preferred embodiment of the present invention, or not within the spirit and principles in the present invention not all in order to restriction the present invention, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a method that realizes conference segmentation services is applied to it is characterized in that based in the integrated services digital network ISDN/ common exchanging telephone network PSTN network under the IP Multimedia System IMS network architecture, comprising:
Access node receives the SETUP message of the Digital Subscriber signalling No.1 DSS1 form of ISDN/PSTN user's transmission, and described SETUP message has been carried the information of beginning conference segmentation services information and divided conferenced party;
Described access node generates first INVITE of Session initiation protocol SIP form according to the information of beginning conference segmentation services information in the SETUP message and divided conferenced party, application unified resource identifier Request URI in described first INVITE is the URI of divided conferenced party, To header field in described first INVITE is the URI of described divided conferenced party, increase the header field of expression conference segmentation services in described first INVITE, the Session Description Protocol SDP information in described first INVITE is for initiating the SDP information of the meeting side of cutting apart;
Described access node sends to application server AS with described first INVITE and carries out the meeting cutting operation with request.
2. the method for claim 1 is characterized in that, also comprises:
Described AS sends the access node of second INVITE to described divided conferenced party, the Request URI of described second INVITE is the URI of described divided conferenced party, the To header field of described second INVITE is the URI of described divided conferenced party, in described second INVITE, increase the header field that the expression conference segmentation services is realized, in described second INVITE, increase header field, described header field is that described divided conferenced party is by the dialogue identifier of using in convention business before cutting apart, Session Description Protocol SDP information in described second INVITE is the SDP information of initiation conference segmentation services side, and sends described second INVITE to the access node of described divided conferenced party;
The message that the access node of described divided conferenced party is realized according to the conference segmentation services in described second INVITE that receives generates the NOTIFY of DSS1 form, the descriptor of described NOTIFY is 1000011, and sends described NOTIFY to divided conferenced party.
3. method as claimed in claim 1 or 2 is characterized in that, also comprises:
Described AS sends the access node of reINVITE message to described other conferenced partys, Request URI in the described reINVITE message is the URI of described other conferenced partys, To header field in the described reINVITE message is the URI of described other conferenced partys, in described reINVITE message, increase the header field that the expression conference segmentation services is realized, and send described reINVITE message to the access node of other conferenced partys;
The message that the access node of described other conferenced partys is realized according to the conference segmentation services in the described reINVITE message that receives generates the NOTIFY of DSS1 form, the descriptor of described NOTIFY is 1001001, and sends described NOTIFY to other conferenced partys.
4. a system that realizes conference segmentation services is characterized in that, comprising:
Access node, application server AS and media resource processor MRFP;
The access node of initiating conference segmentation services side is used to receive the SETUP message of Digital Subscriber signalling No.1 DSS1 form, and generate first INVITE of Session initiation protocol SIP form according to the information of the information of the beginning conference segmentation services that carries in the described message and divided conferenced party, application unified resource identifier Request URI in described first INVITE is the URI of described divided conferenced party, To header field in described first INVITE is the URI of described divided conferenced party, in described first INVITE, increase the header field of expression conference segmentation services, Session Description Protocol SDP information in described first INVITE is for initiating the SDP information of the meeting side of cutting apart, and send described first INVITE to application server AS, carry out the meeting cutting operation with request;
Described AS is used for according to described request, and control media resource processor MRFP carries out the meeting cutting operation.
5. system as claimed in claim 4 is characterized in that, also comprises:
Described AS also is used for sending second INVITE to the access node of described divided conferenced party, the Request URI of described second INVITE is the URI of described divided conferenced party, the To header field of described second INVITE is the URI of described divided conferenced party, in described second INVITE, increase the expression meeting and cut apart the header field of success, increase the described divided conferenced party of expression by the header field of the dialogue identifier of using in convention business before cutting apart in described second INVITE, the SDP information in described second INVITE is for initiating the SDP information of conference segmentation services side;
The access node of described divided conferenced party also is used for generating according to the message that the conference segmentation services of described second INVITE that receives is realized the NOTIFY of DSS1 form, the descriptor of described NOTIFY is 1000011, and is used to send described NOTIFY to divided conferenced party.
6. system as claimed in claim 5 is characterized in that, also comprises:
Described AS also is used for sending reINVITE message to the access node of described other conferenced partys, Request URI in the described reINVITE message is the URI of described other conferenced partys, To header field in the described reINVITE message is the URI of described other conferenced partys, increases the header field that the expression conference segmentation services is realized in described reINVITE message;
The access node of described other conferenced partys also is used for generating according to the message that the conference segmentation services of the described reINVITE message that receives is realized the NOTIFY of DSS1 form, the descriptor of described NOTIFY is 1001001, and is used to send described NOTIFY to described other conferenced partys.
7. a network equipment is characterized in that, comprising:
Receiver module is used to receive the SETUP message of Digital Subscriber signalling No.1 form;
Mapping block, be used for generating the INVITE of Session initiation protocol SIP form according to the information of the information of the beginning conference segmentation services of described SETUP message and divided conferenced party, application unified resource identifier Request URI in the described INVITE is the URI of divided conferenced party, To header field in the described INVITE is the URI of described divided conferenced party, increase the header field of expression conference segmentation services in described INVITE, the Session Description Protocol SDP information in the described INVITE is for initiating the SDP information of the meeting side of cutting apart;
Sending module is used to send described INVITE.
8. a network equipment is characterized in that, comprising:
Receiver module is used to receive the INVITE or the reINVITE message of conversation initialized protocol form;
Mapping block, receive described INVITE if be used for receiver module, then the message that realizes according to the conference segmentation services in the described INVITE generates first NOTIFY of No. 1 digital signalling form, and the descriptor of described first NOTIFY is 1000011; If receiver module receives described reINVITE message, then the message that realizes according to the conference segmentation services in the described reINVITE message generates second NOTIFY of No. 1 digital signalling form, and the descriptor of described second NOTIFY is 1001001;
Sending module receives described INVITE if be used for receiver module, then sends described first NOTIFY, if receiver module receives described reINVITE message, then sends described second NOTIFY.
9. device as claimed in claim 8 is characterized in that,
Described network equipment is MSAN MSAN.
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| CN200810217252A Pending CN101742005A (en) | 2008-11-05 | 2008-11-05 | Method, system and network device for realizing conference segmentation services |
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