CN101123647A - A communication method, system and service control function entity - Google Patents
A communication method, system and service control function entity Download PDFInfo
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- CN101123647A CN101123647A CN200710153905.2A CN200710153905A CN101123647A CN 101123647 A CN101123647 A CN 101123647A CN 200710153905 A CN200710153905 A CN 200710153905A CN 101123647 A CN101123647 A CN 101123647A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1069—Session establishment or de-establishment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1101—Session protocols
- H04L65/1104—Session initiation protocol [SIP]
Abstract
The present invention discloses a method for communication, which includes a calling terminal sends a call request to business control functional entity, and the call request contains a calling terminal identification and/or a called terminal identification; according to the calling terminal identification and/or the called terminal identification the business control functional entity determines a terminal with ability of playing media stream and obtain the address of media stream subscribed by the terminal; the terminal with ability of playing media stream according to the address of the media stream obtains and plays the subscribed media stream. The application efficiency of the terminal is improved through the present invention, and the user experiences well. The present invention also discloses a communication system and a business control functional entity.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of communication means, system and business control function body.
Background technology
(Session Initiation Protocol SIP) is next generation network (NextGeneration Net, the NGN) important protocol in, the attention of the industry that more and more obtains communicating by letter to Session initiation Protocol.The purpose of exploitation SIP is that (Internet Protocol, IP) signaling in the net is controlled, and communicates with soft switch, and the senior telephone service of crossing over internet (Internet) is provided in order to solve Internet Protocol.
There is a large amount of public switched telephone network (PSTN) (Public Switched TelephoneNetwork in the communication network, PSTN) user, development along with telecommunications, use the user of SIP visual telephone also more and more, between PSTN terminal and the SIP radio phone terminal, or the SIP radio phone terminal is with before conversation between the SIP radio phone terminal is connected, and the screen of SIP radio phone terminal all is to be in idle state; If what carry out is non-video calling, then the screen of SIP radio phone terminal remains and is in idle state, is not used fully in these functions that are in idle time radio phone terminal, makes the user experience relatively poor after the conversation successful connection.
Summary of the invention
The embodiment of the invention provides a kind of communication means, system and business control function body, when not carrying out video calling to solve the terminal that has a media stream ability in utilization that exists in the prior art, screen is in idle state, makes the relatively poor problem of user experience.
A kind of communication means, this method comprises:
Calling terminal comprises calling terminal identification and/or terminal called sign to the business control function body request of making a call in this call request;
Business control function body determines to have the terminal of media stream ability according to described calling terminal identification and/or terminal called sign, and obtains the address of the Media Stream of this terminal subscribes;
Described terminal with media stream ability obtains and plays the Media Stream of subscription according to the address of described Media Stream.
A kind of communication system, this system comprises calling terminal, terminal called and business control function body, wherein,
Described calling terminal, be used for to the request of making a call of described business control function body, comprise calling terminal identification and/or terminal called sign in this call request, if have the ability of media stream, then the Media Stream of subscribing to is play in the address of the Media Stream that obtains according to described business control function body;
Described business control function body is used for determining to have the terminal of media stream ability according to the calling terminal identification and/or the terminal called sign of described call request, and obtains the address of the Media Stream of this terminal subscribes;
Described terminal called is used for if having the ability of media stream, and then the Media Stream of subscribing to is play in the address of the Media Stream that obtains according to described business control function body.
A kind of business control function body, this business control function body comprises:
Receiver module is used for the call request that receiving terminal sends, and comprises terminal iidentification in this call request;
The terminal capability determination module is used for determining whether the terminal of described terminal iidentification correspondence has the ability of media stream;
Acquisition module is used for when the terminal of described terminal iidentification correspondence has the media stream ability address that obtains the Media Stream of described terminal subscribes.
In the embodiment of the invention, when being in the state that does not carry out video calling behind the terminal off-hook with media stream ability, the media stream data that this terminal plays is subscribed to has in advance improved the application efficiency of terminal, makes better user experience.
Description of drawings
Fig. 1 (a) and Fig. 1 (b) are the structural representation of communication system in the embodiment of the invention one;
Fig. 2 is the steps flow chart schematic diagram of communication process in the embodiment of the invention two;
Fig. 3 is the signaling process schematic diagram of communication process in the embodiment of the invention three;
Fig. 4 is the signaling process schematic diagram of communication process in the embodiment of the invention four;
Fig. 5 is the signaling process schematic diagram of communication process in the embodiment of the invention five;
Fig. 6 is the signaling process schematic diagram of communication process in the embodiment of the invention six;
Fig. 7 is in the embodiment of the invention seven, sets up the signaling process schematic diagram that the customized multimedia business of looking is realized in the conversation back between calling terminal and terminal called;
Fig. 8 is the signaling process schematic diagram of communication process in the embodiment of the invention eight;
Fig. 9 is the signaling process schematic diagram of communication process in the embodiment of the invention nine;
Figure 10 is the signaling process schematic diagram of communication process in the embodiment of the invention ten;
Figure 11 is the signaling process schematic diagram of communication process in the embodiment of the invention 11;
Figure 12 (a) and Figure 12 (b) are in the embodiment of the invention 12, the signaling process schematic diagram of communication process when calling terminal and terminal called all are convergent terminal;
Figure 13 is a business control function body structural representation in the embodiment of the invention 13.
Embodiment
In order to realize the object of the invention, in the embodiment of the invention, when not carrying out video calling, utilize terminal to play default media stream data with Media Stream ability to play.
The terminal that what is called has the media stream ability includes but not limited to: SIP radio phone terminal, H.323 radio phone terminal and convergent terminal.The notion of convergent terminal is: a kind of terminal that the phone of common PSTN phone and video telephone (SIP video telephone phone) merges, its physical entity is one, and internal logic is divided into PSTN phone and video phone, inside can be provided with ADSL (Asymmetric Digital Subscriber Line) (Asymmetric Digital Subscriber Line, ADSL) interface and network interface.
Describe the present invention in detail below in conjunction with Figure of description.
Shown in Fig. 1 (a) and Fig. 1 (b), be communication system in the embodiment of the invention one, this system comprises calling terminal 11, terminal called 12 and business control function body 13, wherein, calling terminal 11 is used for to described business control function body 13 request of making a call, comprise calling terminal identification and/or terminal called sign in this call request, if calling terminal 11 self has the ability of media stream, then play the Media Stream of the address correspondence of the Media Stream that calling terminal 11 that described business control function body 13 obtains subscribes to; Business control function body 13 is used for determining to have the terminal of media stream ability according to the calling terminal identification of described call request and/or terminal called sign, and obtains the address of the Media Stream of this terminal subscribes; Terminal called 12 is used for if self have the ability of media stream, then plays the Media Stream of the address correspondence of the Media Stream of self subscribing to that described business control function body 13 obtains.
Described in embodiments of the present invention communication system connected except conversing, the realization customized multimedia of can also (conversing to connect to set up before or carry out non-video and connect) when not carry out video calling was looked business.
In addition, described system also comprises application server 14, is used to inquire the address of the Media Stream of the terminal subscribes with media stream ability that described business control function body 13 determines, and this address is returned to described business control function body 13.
For convenience the user uses native system, also needs to add up the time of the calling and called terminal plays Media Stream of the ability with media stream in the present embodiment, comprises but does not limit following two kinds of situations:
1, shown in Fig. 1 (a), described system also comprises timer 15, is used for starting timer when the described terminal of the ability with media stream begins media stream, stops timer when stopping media stream, finally adds up playing duration.
2, shown in Fig. 1 (b), have the described terminal of the ability of media stream, be used for when starting or stoping media stream broadcast state sent to business control function body 13; Business control function body 13 is used for described broadcast state is transmitted to application server 14; Application server 14 is used for according to starting broadcast event and stopping broadcast event statistics playing duration.
In addition, timer 15 and application server 14 can also be combined, carry out the operation of statistics playing duration.
In the system and follow-up described method of the embodiment of the invention, can be applied to Session Initiation Protocol or agreement etc. H.323.
Describe the inventive method in detail below in conjunction with specific embodiment.
In calling terminal or the terminal called one or two has the ability of playing media flow data.As shown in Figure 2, be communication means steps flow chart schematic diagram in the embodiment of the invention two, as can be seen from the figure, present embodiment mainly may further comprise the steps:
Step 201: calling terminal has comprised calling terminal identification and/or terminal called sign by the business control function body request of making a call in this call request.
The calling terminal request that at first makes a call when calling out beginning, in this call request except comprising calling terminal identification and/or terminal called identify the information of needs in the time of can also having comprised other normal calls.
Business control function body includes but not limited to: sip server (SIP Server), H.323 server (H.323 Server).
Step 202: business control function body judges respectively according to the calling and called terminal iidentification whether the calling and called terminal has the ability of media stream, if having, then execution in step 203, if do not have the connection of then conversing normally.
In the present embodiment, common pstn telephone terminal is only conversed normally, the ability that does not have the playing media flow data, therefore business control function body can (Home Subscriber Server HSS) determines which or two abilities with playing media flow data in the calling and called terminal from home signature user server according to the terminal iidentification that receives.
Step 203: (Application Server AS) locates to obtain the Media Stream address that calling terminal with media stream data capability and/or terminal called are subscribed to business control function body from application server.
Described Media Stream address includes but not limited to: and the URL(uniform resource locator) of media stream data (UniversalResource Locator, URL).
AS includes but not limited to: strategic server.
Step 204: business control function body returns to described calling terminal and/or terminal called with the Media Stream address that obtains.
If calling terminal has the ability of media stream, the Media Stream of can customized in advance hope playing, or be the customized media stream data of terminal by the telecommunications operator, then set up the corresponding relation of calling terminal identification and Media Stream address.When business control function body determines that according to the attribute of calling terminal calling terminal has the ability of media stream, from AS, inquire corresponding Media Stream address, and return to calling terminal.Judge the ability of terminal called and return the process of Media Stream address similar.
Step 205: have the calling terminal of media stream ability and/or the Media Stream that terminal called is play described Media Stream address correspondence.
Calling terminal and/or terminal called with media stream ability receive after the described Media Stream ground, are connected to media stream server according to this address, and play the Media Stream that obtains from media stream server.
Described in embodiments of the present invention communication means connected except conversing, the realization customized multimedia of can also (conversing to connect to set up before or carry out non-video and connect) when not carry out video calling was looked business.
Comprise also in the embodiment of the invention two that business control function body is routed to the step of terminal called with call request, this step can be applied between step 201 and the step 202, also can be applied between step 203 and the step 205.
Before call proceeding, when utilizing the SIP radio phone terminal to play sound, video data, there is multiple situation according to the kind of calling and called terminal, be described respectively at different situations below.
As shown in Figure 3, look professional signaling process schematic diagram in communication process, realizing customized multimedia in the embodiment of the invention three, in present embodiment three, setting business control function body is SIP Server, calling terminal is the SIP radio phone terminal, the Media Stream address is URL, and present embodiment three mainly may further comprise the steps:
Step 301: the calling terminal off-hook reports SIP Server with off-hook event.
Set between calling terminal and the SIP Server and subscribed to the SOT state of termination reported event, when the calling terminal off-hook, the calling terminal User Status reports SIP Server, is about to off-hook event and reports SIP Server.In the present embodiment, can regard the terminal use's state that reports as call request, the information that reports comprises the state information of calling terminal identification and calling terminal.
Step 302:SIP Server obtains the URL address of the Media Stream of calling terminal correspondence from strategic server.
In the present embodiment, because calling terminal is the SIP radio phone terminal, then when the calling terminal off-hook, SIP Server will need the URL address of the Media Stream of broadcast for the calling terminal inquiry, so that calling terminal media stream when not carrying out video calling.
The URL address that strategic server obtains the Media Stream of calling terminal needs broadcast according to predefined mode includes but not limited to:
Calling terminal has been subscribed to Media Stream (video clip or video ads information etc.) in advance, and set up the corresponding relation of calling terminal identification and Media Stream URL, SIP Server sends to strategic server with calling terminal identification, strategic server finds out described URL according to calling terminal identification of having set up and the corresponding relation of Media Stream URL, and returns to SIP Server.
Step 303:SIP Server sends to calling terminal with the URL that receives, and then calling terminal is play the Media Stream of described URL correspondence.
Calling terminal obtains the Media Stream of this URL correspondence according to described URL from streaming media server, and plays this Media Stream to the user.
In present embodiment three,, when then needing only the terminal off-hook and not carrying out video calling, can play the audio, video data of setting to the user by terminal as long as subscribed to the SOT state of termination reported event between terminal and the SIP Server.
As shown in Figure 4, be the signaling process schematic diagram in communication process in the embodiment of the invention four, in present embodiment four, setting calling terminal is the PSTN terminal, terminal called is the SIP radio phone terminal, when calling terminal when listening ring-back tone and terminal called in ring, terminal called playing media flow data.This process comprises:
Step 401: calling terminal is by the SIP Server request of making a call.
Calling terminal sends to SIP Server with call request, comprises calling terminal identification and terminal called sign in this call request.
Be that example illustrates the color business of looking of realization in the present embodiment with the sip message, therefore, described call request can be invitation message (SIP INVITE).
Step 402:SIP Server determines that terminal called has the ability of media stream.
SIP Server determines that according to calling terminal identification in the call request that receives and terminal called sign calling terminal is the PSTN terminal, and terminal called is the SIP radio phone terminal.
Step 403:SIP Server obtains the Media Stream address of terminal called correspondence from strategic server.
Strategic server finds out the address of the Media Stream of subscription according to the terminal called sign, and returns to SIPServer.
Step 404:SIP Server sends to terminal called with described call request, with call proceeding.
After SIP Server receives the Media Stream address of returning, with the call proceeding between calling terminal and the terminal called: send call request to terminal called, and receive SIP 180 responses that terminal called returns.
At this moment, calling terminal is heard ring-back tone, and terminal called begins ring.
Step 405:SIP Server sends terminal called with the Media Stream address, and terminal called is play corresponding Media Stream according to this Media Stream address.
With embodiment four similarly, when calling terminal is the SIP radio phone terminal, when terminal called is the PSTN terminal, can utilize calling terminal to play predefined Media Stream equally, as shown in Figure 5, signaling process schematic diagram for communication process in the embodiment of the invention five, with different among the embodiment four be: SIP Server judges the ability that calling terminal has media stream, the Media Stream address that will obtain from strategic server sends to calling terminal, is obtained and media stream from streaming media server according to the Media Stream address by calling terminal.
When calling terminal and terminal called all have the ability of media stream (as all being the SIP radio phone terminal), then can realize communication process according to the signaling process schematic diagram shown in Figure 6 of the embodiment of the invention six correspondences.SIP Server determines that calling terminal and terminal called all are the SIP radio phone terminals, then from strategic server, inquire about the address of the Media Stream of these two terminal correspondences respectively, calling terminal is after hearing ring-back tone, with terminal called after ring, from streaming media server, obtain and media stream according to the address of Media Stream respectively.
At embodiment three, four, five and six all is to realize the color process of looking professional when not conversing between calling terminal and terminal called, is that conversation between calling terminal and terminal called is set up the back and realized the color process of looking professional in the subsequent embodiment seven, eight and nine.
As shown in Figure 7, in the embodiment of the invention seven, set up the conversation back and realize the color process of looking professional between calling terminal and terminal called, in the present embodiment, setting calling terminal is the PSTN terminal, and terminal called is the SIP radio phone terminal, comprising:
Step 701: calling terminal sends call request to SIP Server, and SIP Server is routed to terminal called with this call request, and the conversation of setting up between calling terminal and the terminal called connects.
Comprised calling terminal identification and terminal called sign in the described call request, after SIP Server receives call request, according to terminal called sign with call proceeding to terminal called: SIP Server sends to terminal called with SIPINVITE, and receive SIP 180 response messages that terminal called returns, this moment, calling terminal was heard ring-back tone, dialed terminal bell.During the terminal called off-hook, send SIP 200 response messages, after SIP Server is back to terminal called with response message (SIP ACK), begin conversation between the calling and called terminal to SIP Server.
Step 702:SIP Server obtains the address of the Media Stream of terminal called correspondence from strategic server.
SIP Server determines that according to the terminal called sign terminal called is the SIP radio phone terminal, is then inquired the address of the Media Stream that customizes into terminal called by strategic server.
Step 703: after terminal called receives the Media Stream address, play the Media Stream of this Media Stream address correspondence.
Embodiment eight is that SIP video telephone, terminal called are example for the PSTN terminal with the calling terminal, similar with the basic process of embodiment seven, difference is: after calling terminal and terminal called connect, SIP Server inquires the address of the Media Stream of subscribing to into calling terminal from strategic server, obtain and play corresponding Media Stream according to the address of described Media Stream from streaming media server by calling terminal, as shown in Figure 8.
In embodiment nine, setting calling terminal and terminal called all is the SIP radio phone terminal, present embodiment can be regarded the combination of embodiment seven and embodiment eight as, as shown in Figure 9, after the calling and called terminal is set up the calling connection, SIP Server is retrieved as the address of the Media Stream of calling terminal and terminal called customization respectively from strategic server, and then calling terminal and terminal called obtain and media stream from streaming media server according to the address of Media Stream respectively.
In embodiments of the present invention, can add up the duration of calling and called terminal plays Media Stream, and this duration information is returned to the user.The mode of statistics duration but be not limited to: when terminal begins media stream, start timer, when stopping media stream, stop timer, obtain playing duration according to timer; Have and subscribe to the SOT state of termination reported event between the terminal of media stream ability and the SIP Server, when terminal begins or stop media stream, can broadcast state be sent to SIP Server by message such as SIP, SIP Server passes to AS with this broadcast state, and AS counts playing duration according to starting broadcast event and stopping broadcast event.
In embodiment three to embodiment nine, the calling and called terminal all is to belong to same SIP Server, and in embodiments of the present invention, the calling and called terminal also can belong to different SIP Server respectively.As shown in figure 10, be signaling process schematic diagram in the embodiment of the invention ten, calling terminal belongs to different SIP Server respectively with terminal called.The process of representing terminal called media stream when ring in the drawings in the frame of broken lines of 1001 signs; The process of expression calling terminal media stream when listening ring-back tone in the frame of broken lines of 1002 signs among the figure; The frame of broken lines of 1003 signs represent that calling terminal and terminal called carry out the process of non-video when conversation media stream among the figure.In Figure 10 of present embodiment, the address of the Media Stream that to be application server subscribe to terminal called returns to the SIP Server that service is provided for terminal called, also can transmit this address by the SIP Server that service is provided for calling terminal.
It is not set up to call out when connecting between the calling and called terminal that the coloured silk of embodiment three to embodiment six is looked professional realization, it is after setting up non-video calling connection between the calling and called terminal that the coloured silk of embodiment seven to embodiment ten is looked professional realization, in embodiments of the present invention, include but not limited to: will call out the process before connect setting up and call out and be connected the process afterwards of the setting up realization coloured silk that combines and look business.As shown in figure 11, signaling process schematic diagram for the embodiment of the invention 11, in the present embodiment, the calling and called terminal all is the SIP radio phone terminal, business control function body is home domain server node (S-CSCF), before conversation connects, plays the Media Stream of subscribing to respectively, after carrying out the non-video conversation, the calling and called terminal is still play the Media Stream of subscription.This step comprises:
Step 1101: calling terminal can comprise the sign of calling and called terminal by the S-CSCF request of making a call in this call request.
Behind the calling terminal off-hook, can initiate described call request, this call request can be an INVITE, (P-CSCF) sends to S-CSCF by agent node, and S-CSCF determines that the calling and called terminal has the ability of media stream, then is forwarded to application server with call request.
Step 1102:S-CSCF obtains the corresponding respectively Media Stream address of calling and called terminal from application server.
Application server inquires the address of the Media Stream of subscription according to the calling and called terminal iidentification, and this address is returned to S-CSCF by INVITE.
Step 1103:S-CSCF sends to terminal called with described call request, with call proceeding.
Provide the S-CSCF of service that call request is forwarded to terminal called by the S-CSCF of service is provided for terminal called for calling terminal, after callee side returned 180 response messages, calling terminal is in listened the ring-back tone state, and the called subscriber is in ringing condition.
Step 1104:S-CSCF sends to the calling and called end side with the Media Stream address, and the calling and called terminal is obtained the Media Stream of described address correspondence, and plays.
For providing the S-CSCF of service, calling terminal will send to calling terminal and terminal called by P-CSCF with for terminal called provides the S-CSCF of service respectively from the Media Stream address that application server obtains, the calling and called terminal is obtained corresponding Media Stream according to described address from streaming media server, and plays to the user.
In the present embodiment, also can described address be sent to the calling and called terminal by application server.
Step 1105: terminal called off-hook, conversation connect to be set up.
In this step, application server can be inquired about the Media Stream address (the calling and called terminal can be subscribed to different Media Streams in the different time) of calling and called terminal subscribes once more according to the sign of calling and called terminal.
Step 1106: application server sends to the calling and called terminal with described address, and the calling and called terminal obtains corresponding Media Stream according to described address, and plays.
If in step 1105, application server is not inquired about the Media Stream address once more, then in this step according to the address media stream that obtains in the step 1104.
In embodiment two to embodiment 11, all be with the agreement of Session Initiation Protocol as transfer of data, and the terminal with media stream ability is the SIP radio phone terminal, in the embodiment of the invention 12, setting has the terminal convergent terminal of media stream ability, and calling terminal and terminal called all are convergent terminal, and communication process is shown in Figure 12 (a) and Figure 12 (b), the realization coloured silk is looked operation flow when setting up the conversation connection between Figure 12 (a) expression calling terminal and the terminal called, comprising:
Step 1201: the PSTN terminal in the calling terminal comprises calling terminal identification and terminal called sign by the PSTN terminal request of making a call of SIP Server in terminal called in this call request.
PSTN in the calling terminal initiates request by the PSTN of normal mode in terminal called.
PSTN terminal in the calling terminal sends the SIP Server A that calling terminal most provides service with this call request by initial address message (IAM), SIP ServerA transmits the SIP ServerB that terminal called most provides service with this call request by INVITE, and SIP ServerB sends this call request the PSTN terminal of terminal called once more by IAM.PSTN terminal in the terminal called is back to the PSTN terminal with the former road of response message.
Step 1202:SIP Server determines that the calling and called terminal has the address of the ability of media stream from the Media Stream of strategic server inquiry calling and called terminal customization.
SIP Server can carry the information (as terminal called sign, calling terminal identification and call information etc.) that needs by information (INFO) message from the address that strategic server obtains Media Stream.
Step 1203: strategic server returns to the Media Stream address that inquires respectively the SIP Server that service is provided for the master, by terminal.
In the present embodiment, can carry the Media Stream address of returning by 200 response messages.
Step 1204:SIP Server returns to sip terminal in the calling and called terminal with the Media Stream address respectively.
The Media Stream address of setting the calling terminal correspondence is URL A1, the Media Stream address of terminal called correspondence is URL B1, then SIP Server utilizes INFO that URL A1 is returned to sip terminal in the calling terminal, and URL B1 is returned to sip terminal in the terminal called.
Step 1205: the calling and called terminal receives the Media Stream address respectively and obtains also media stream.
Lead, returned 200 response messages to the SIP Server that service is provided for self by terminal.
To 1205, realized that the coloured silk before the calling and called terminal is set up conversation is looked business by step 1201, shown in Figure 12 (b), looked business, having comprised for the coloured silk of setting up after conversing between the calling and called terminal:
Step 1206: set up normal talking between the calling and called terminal and connect.
The terminal called off-hook, information is sent to the SIP Server that server is provided for terminal called by response message (ANM), this SIP Server with this information by 200 forwards most calling terminal the SIP Server of server is provided, this SIP Server sends to the PSTN terminal of calling terminal with this information by ANM, and ACK message is returned to the SIP Server that service is provided for terminal called.
Step 1211: the INFO that the sip terminal of calling terminal will carry playing duration is forwarded to strategic server by the SIP Server that service is provided for self.
The process that terminal called returns playing duration is similar, and the INFO that the sip terminal of terminal called also will carry playing duration is forwarded to strategic server by the SIP Server that service is provided for self.
Strategic server returns 200 response messages by identical path.
According to the scheme of embodiment two to embodiment 12 as can be known: need in calling terminal and the terminal called one or two to have the ability of media stream, type for terminal itself does not limit, can be sip terminal, H.323 terminal or convergent terminal or separate terminal, therefore, communication process can be the communication between the different types of terminals, is not limited to the situation that previous embodiment is described.
When strategic server required inquiry Media Stream address, information can be passed through message such as INFO, MESSAGE and send at sip server; Strategic server with the address of the Media Stream that obtains by 200, message such as INFO, MESSAGE return to sip server.
Description according to the system and method for front, the embodiment of the invention 13 also provides a kind of business control function body, as shown in figure 13, this business control function body comprises receiver module 21, terminal capability determination module 22 and acquisition module 23, wherein, receiver module 21 is used for the call request that receiving terminal sends, and comprises terminal iidentification in this call request; Terminal capability determination module 22 is used for determining whether the terminal of described terminal iidentification correspondence has the ability of media stream; Acquisition module 23 is used for when the terminal of described terminal iidentification correspondence has the media stream ability, the address that obtains the Media Stream of described terminal subscribes.
Described business control function body also comprises sending module 24, is used for the address of described Media Stream is returned to the described terminal with media stream ability.In the present embodiment, sending module 24 can be carried at described Media Stream address and send to terminal in the INFO.
In system, method and the business control function body of the described description of the embodiment of the invention, need to realize the signaling transmission between calling and called terminal and the SIP Server, if in Session Initiation Protocol, then be the information that the carrier transmission needs with the sip message, if in agreement H.323, be the information that the carrier transmission needs then with message H.323.With the Session Initiation Protocol is example, sip message is generally supported TEL URI/SIP URI, and because in the present embodiment, sip message need carry the RTSP URI or the HTTP URL of Media Stream in the media stream server, therefore need unified resource sign (URI) address in the expansion sip message, make sip message also support RTSPURI or HTTP URL.Interface message is as shown in table 1:
| INFO?sip：*889@10.75.35.161；user＝phone?SIP/2.0 Via：SIP/2.0/UDP?10.70.106.82:5060；branch＝z9hG4bK3883054875 From：<sip：075588881234@10.75.35.161；user＝phone>；tag＝1451640803 To：<sip：075589834250@10.75.35.161；user＝phone> Call-ID：EC78236491@10.70.106.82 CSeq：29?INFO Max-Forwards：5 Subject：Client?Request Allow：INVITE，ACK，CANCEL，BYE，OPTIONS，REFER，SUBSCRIBE， NOTIFY，INFO，INFO Content-Type：text/xml Content-Length：.. <inf> <cmd>xxxx</cmd> <linkuri>*****************</linkuri> <cont>********************</cont> <eventt>*******************</event> <autolink>xxx</autolink> </inf> |
Table 1
Wherein, the message format of INFO for transmitting, the cmd command word is represented the action that needs are carried out, and is 4001 to be illustrated in the calling and called terminal when carrying out video calling as: cmd, has the Media Stream of the terminal plays subscription of media stream ability.
＜linkuri〉address of presentation medium stream, address style can be HTTP URL or RTSPURL, when the address type was HTTP URL, final link was received on the corresponding website; When address style was RTSP URL, final link was received corresponding streaming media server.
＜cont〉supplemental instruction of expression linkuri link.
＜event〉the expression starting terminal, stop, suspending the state event of media stream.
＜autolink〉the expression terminal connection method, can manual mode also can automated manner.As:
Autolink represented that terminal terminal after receiving message was connected to streaming media server automatically at 2 o'clock, and terminal is without any need for operation.
Also needing to realize the signaling transmission between same SIP Server and the application server, if in Session Initiation Protocol, then is the information that the carrier transmission needs with the sip message, if in agreement H.323, is the information that the carrier transmission needs with message H.323 then.With the Session Initiation Protocol is example, sip message is generally supported TEL URI/SIP URI, and because in the present embodiment, sip message need carry the RTSP URI or the HTTP URL of Media Stream in the media stream server, therefore need the URI address in the expansion sip message, make sip message also support RTSP URI or HTTP URL.Interface message is as shown in table 2:
| INFO?sip：075589834250@10.75.35.161；user＝phone?SIP/2.0 Via：SIP/2.0/UDP?10.70.106.82:5060；branch＝z9hG4bK3883054875 From：<sip：075588881234@10.75.35.161；user＝phone>；tag＝1451640803 To：<sip：075589834250@10.75.35.161；user＝phone> Call-ID：EC78236491@10.70.106.82 CSeq：29?INFO Max-Forwards：5 Subject：Client?Request Allow：INVITE，ACK，CANCEL，BYE，OPTIONS，REFER，SUBSCRIBE， NOTIFY，INFO，INFO Content-Type：text/xml Content-Length：.. <inf> <cmd>xxxx</cmd> <linkuri>*****************</linkuri> <cont>********************</cont> |
| <eventt>*******************</event> <autolink>xxx</autolink> <callee>********************</callee> <caller>********************</caller> <callinfo>*****************</callinfo> </inf> |
Table 2
Table 1 and table 2 are the interface message of INFO, and be as shown in table 3, is the interface message of 200 message.
| SIP/2.0?200?OK Via：SIP/2.0/UDP?10.70.106.82:5060；branch＝z9hG4bK3883054875 From：<sip：075588881234@10.75.35.161；user＝phone>；tag＝1451640803 To：<sip：075589834250@10.75.35.161；user＝phone>；tag＝1330799 Call-ID：EC78236491@10.70.106.82 CSeq：29?INFO Content-Type：text/xml Content-Length：.. <inf> <cmd>xxxx</cmd> <linkuri>*****************</linkuri> <cont>********************</cont> <eventt>*******************</event> <autolink>xxx</autolink> <callee>********************</callee> <caller>********************</caller> <callinfo>*****************</callinfo> </inf> |
Table 3
Wherein, cmd, linkuri, cont, event, autolink Tag parameter are with soft switch and terminal interface implication.
＜callee〉expression terminal called sign,＜caller〉the expression calling terminal identification;＜callinfo〉information when representing normal call.
When the calling and called terminal is not carried out video calling, play the media stream data of subscribing in advance by method of the present invention, system and business control function body, make the user can obtain more information simultaneously, experience better.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (12)
1. a communication means is characterized in that, this method comprises:
Calling terminal comprises calling terminal identification and/or terminal called sign to the business control function body request of making a call in this call request;
Business control function body determines to have the terminal of media stream ability according to described calling terminal identification and/or terminal called sign, and obtains the address of the Media Stream of this terminal subscribes;
Described terminal with media stream ability obtains and plays the Media Stream of subscription according to the address of described Media Stream.
2. the method for claim 1 is characterized in that, described business control function body obtains the address of the Media Stream of the terminal subscribes with media stream ability from application server.
3. the method for claim 1 is characterized in that, described method also comprises step:
Described business control function body is routed to described terminal called with described call request,
Described step application is after business control function body obtains the address of described Media Stream, and described terminal is obtained and play before the Media Stream of subscription; Or calling terminal is after the business control function body request of making a call, and described business control function body determines to have before the terminal of media stream ability.
4. the method for claim 1 is characterized in that, described method also comprises:
When the described terminal of the ability with media stream begins media stream, start timer, when stopping media stream, stop timer, obtain playing duration according to timer; Or
Have media stream ability described starting terminal or broadcast state is sent to application server by business control function body when stopping media stream, this application server counts playing duration according to starting broadcast event and stopping broadcast event.
5. a communication system is characterized in that, this system comprises calling terminal, terminal called and business control function body, wherein,
Described calling terminal, be used for to the request of making a call of described business control function body, comprise calling terminal identification and/or terminal called sign in this call request, if have the ability of media stream, then the Media Stream of subscribing to is play in the address of the Media Stream that obtains according to described business control function body;
Described business control function body is used for determining to have the terminal of media stream ability according to the calling terminal identification and/or the terminal called sign of described call request, and obtains the address of the Media Stream of this terminal subscribes;
Described terminal called is used for if having the ability of media stream, and then the Media Stream of subscribing to is play in the address of the Media Stream that obtains according to described business control function body.
6. system as claimed in claim 5 is characterized in that, described system also comprises:
Application server is used to inquire the address of the Media Stream of the terminal subscribes with media stream ability that described business control function body determines, and this address is returned to described business control function body.
7. system as claimed in claim 5 is characterized in that, described system applies is in Session initiation Protocol or agreement H.323.
8. system as claimed in claim 6 is characterized in that, described system also comprises:
Timer is used for starting timer when the described terminal of the ability with media stream begins media stream, stops timer when stopping media stream, the statistics playing duration; Or
Have the described terminal of the ability of media stream, be used for when starting or stoping media stream, broadcast state being sent to business control function body;
Described business control function body is used for described broadcast state is transmitted to application server;
Described application server is used for according to starting broadcast event and stopping broadcast event statistics playing duration.
9. system as claimed in claim 5 is characterized in that, described terminal with ability of media stream comprises: Session initiation Protocol radio phone terminal, H.323 radio phone terminal or convergent terminal.
10. a business control function body is characterized in that, this business control function body comprises:
Receiver module is used for the call request that receiving terminal sends, and comprises terminal iidentification in this call request;
The terminal capability determination module is used for determining whether the terminal of described terminal iidentification correspondence has the ability of media stream;
Acquisition module is used for when the terminal of described terminal iidentification correspondence has the media stream ability address that obtains the Media Stream of described terminal subscribes.
11. business control function body as claimed in claim 10 is characterized in that, described business control function body also comprises:
Sending module is used for the address of described Media Stream is returned to the described terminal with media stream ability.
12. business control function body as claimed in claim 11 is characterized in that, described sending module, be used for carry described Media Stream address the information INFO send to described terminal.
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| CN200710153905.2A CN101123647B (en) | 2007-09-13 | 2007-09-13 | A communication method, system and service control function entity |
| PCT/CN2008/072232 WO2009033401A1 (en) | 2007-09-13 | 2008-09-02 | A communication method, system and service controlling function entity |
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Also Published As
| Publication number | Publication date |
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| WO2009033401A1 (en) | 2009-03-19 |
| CN101123647B (en) | 2011-07-27 |
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