CN100450003C - Method and system for implementing non-speech channel alternate multimedia color ring service - Google Patents
Method and system for implementing non-speech channel alternate multimedia color ring service Download PDFInfo
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Abstract
The invention discloses a method for implementing multimedia color ring service without speech path rerouting, comprising the steps of: MSC calls a called terminal according to the call initiated by a calling terminal, and the called terminal returns call response information according to the call; MSC receives the call response information and then informs MRBT of a to-be-played color ring type and switches on the speech path between the calling terminal and MRBT; after the calling terminal and MRBT successfully makes the first media negotiation, MRBT plays multimedia color ring for the calling terminal. And it also discloses a system for implementing multimedia color ring service without speech path rerouting. And it can make network side equipment provide multimedia color ring service in a speech path control mode completely consistent with that of voice color ring service.
Description
Technical field
The present invention relates to the multimedia color ring back tone technology, particularly a kind of method and system that realize non-speech channel alternate multimedia color ring service.
Background technology
The speech CRBT is in the process of user A calling party B, is ordered the music or the voice of one section customization of playing to user A by user A or user B or third party.Along with the construction of 3-G (Generation Three mobile communication system) edition 4 (3G R4), 3G R5 and next generation network (NGN), the user has proposed the requirement of video to communication, and Multimedia Ring Back Tone service occurred thereupon.Multimedia color ring back tone be the speech CRBT to multimedia extension, be in the process of user A calling party B, order the multimedia segment of one section customization of playing by user A or user B or third party to user A, here, the multimedia segment comprises video and audio frequency.
Prior art is mainly transformed the network equipment on the basis of speech Ring Back Tone Technology scheme, and the enhancing by network equipment ability realizes Multimedia Ring Back Tone service.Introduce two kinds of existing methods that realize Multimedia Ring Back Tone service below.
Method one: transform mobile switching centre of end office (EO) (MSC) and attaching position register (HLR), in the built-in video interactive gateway of MSC (VIG) function, by the respectively negotiation of end office (EO), realize non-speech channel alternate multimedia color ring service to calling subscriber and called subscriber's ability.
Fig. 1 realizes the signaling process figure of Multimedia Ring Back Tone service for the built-in VIG function of existing MSC.Referring to Fig. 1, O_MSC among the figure and T_MSC are respectively calling terminal (MO) and terminal called (MT) visited MSC; Multimedia color ring back tone platform (MRBT) is used to provide the multimedia color ring back tone playing function; Suppose caller and calledly belong to same HLR.Signaling process shown in Figure 1 may further comprise the steps:
The calling outgoing call that step 101:O_MSC initiates according to caller is called, the called ALERTING message that returns; In this signalling interactive process, O_MSC analyzes, record called subscriber attribute, determines the called Multimedia Ring Back Tone service of whether opening.
Step 102:O_MSC as called number, sends invitation (INVITE) message to MRBT with called mobile subscriber's international number (MSISDN), and notice MRBT telecasting video frequency color ring still is the speech CRBT in this INVITE;
In this step, O_MSC is according to called subscriber's attribute of step 101 record, the network at O_MSC place, and the character that makes a call of caller, for example the calling initiated of caller is video call or voice call, determines that notice MRBT telecasting video frequency color ring still is the speech CRBT.
Step 103:MRBT returns success message (200 OK) to O_MSC, prepares coloring ring back tone playing;
Step 104 is to the speech channel between step 105:O_MSC connection caller and the MRBT, and to MRBT transmission response message (ACK), do not charge this moment.
Step 106:O_MSC adopts that H.245 agreement and caller are carried out media negotiation and connected network.
In this step, the media consultation process of caller and O_MSC as shown in Figure 2.Referring to Fig. 2, this media consultation process comprises: caller to the negotiation of O_MSC initiating capacity, master-slave negotiation, multiplex consultation, open passage, closing passage and close H.245 session.
Step 107:MRBT is to caller play multimedia CRBT.
Step 108: after the calling of called subscriber answer caller, O_MSC connects the speech channel between the calling and called, and begins the calling subscriber is chargeed; Remove simultaneously with MRBT between carrying be connected.
Step 109 is to step 110: calledly initiate the media negotiation request to O_MSC, O_MSC finish and called between media negotiation; Calling and called are conversed.
In this step, media consultation process and step 106 between the called and O_MSC are similar.
Step 111: when caller or Called Onhook, O_MSC and T_MSC discharge traffic resource.
So far, finish the Signalling exchange that the built-in VIG function of MSC realizes Multimedia Ring Back Tone service.
The scheme that realizes Multimedia Ring Back Tone service by the built-in VIG function of above-mentioned MSC as seen, there is following shortcoming in this scheme:
1, need carry out upgrading to conventional network equipment, make the MSC of end office (EO) of the whole network support VIG ability and Session Initiation Protocol, and the investment that the network equipment is upgraded be big, cost is high;
2, this scheme is bigger to the influence of network equipment capacity, will cause performance of network equipments seriously to descend.
Method two: transform MRBT,,, realize Multimedia Ring Back Tone service by the negotiation respectively of MRBT to calling subscriber and called subscriber's ability in the built-in VIG function of MRBT.
Fig. 3 realizes the signaling process figure of Multimedia Ring Back Tone service for the built-in VIG function of existing MRBT.Referring to Fig. 3, the relation shown in the figure between the network equipment is same as in figure 1, does not repeat them here.Signaling process shown in Figure 3 may further comprise the steps:
The calling outgoing call that step 301:MRBT initiates according to caller is called, the called ALERTING message that returns; In this signalling interactive process, O_MSC analyzes, record called subscriber attribute, to determine whether the called subscriber opens Multimedia Ring Back Tone service.
Step 302:O_MSC connects the speech channel between caller and the MRBT, and do not charge this moment.
Step 303 is to step 304: caller is initiated media negotiation to MRBT, and MRBT adopts that H.245 agreement and caller are carried out media negotiation and connected network; MRBT is according to calling number and called number, and the inquiry called subscriber plays the multimedia color ring back tone of customization at calling subscriber's customized information to caller.
Step 305: after the calling of called party answer caller, O_MSC connects the speech channel between the calling and called, and begins caller is chargeed.
Step 306 is to step 307: calledly initiate the media negotiation request to MRBT, MRBT adopt agreement H.245 finish and called between media negotiation; Calling and called are conversed.
Step 308: when caller or Called Onhook, O_MSC and T_MSC discharge traffic resource.
So far, finish the Signalling exchange that the built-in VIG function of MRBT realizes Multimedia Ring Back Tone service.
The scheme that realizes Multimedia Ring Back Tone service by the built-in VIG function of above-mentioned MRBT as seen, there is following shortcoming in this scheme:
1, need carry out upgrading to conventional network equipment, make MRBT support VIG ability and Session Initiation Protocol, and the investment that the network equipment is upgraded be big, cost is high;
2, resource all will take in whole communication process, and is high to the reliability and stability requirement of MRBT;
3, in the call establishment, called by the MRBT outgoing call, there is alternative channel.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of method that realizes non-speech channel alternate multimedia color ring service, reduces the requirement of business realizing to network equipment.
Another object of the present invention is to provide a kind of system that realizes non-speech channel alternate multimedia color ring service, reduces the requirement of business realizing to network equipment.
For achieving the above object, technical scheme of the present invention specifically is achieved in that
A kind of method that realizes non-speech channel alternate multimedia color ring service, this method may further comprise the steps:
The calling outgoing call terminal called that caller Visited Mobile Switching Center MSC initiates according to calling terminal, terminal called returns call message according to described calling;
After MSC calls is received the call message that terminal called returns,, and connect speech channel between calling terminal and the MRBT with color ring type notice multimedia color ring back tone platform MRBT to be played;
After calling terminal and MRBT successfully carried out the media negotiation first time, MRBT was to calling terminal play multimedia CRBT;
Terminal called is replied the calling of described calling terminal, and calling terminal is initiated media negotiation for the second time to terminal called, and after calling terminal and terminal called successfully carried out the media negotiation second time, calling and called were conversed.
Wherein, the call message returned of described terminal called can be ALERTING message.
Wherein, described first time, media negotiation can be initiated to MRBT by calling terminal;
Described first time media negotiation and for the second time media negotiation can adopt H.324M agreement to carry out.
Wherein, the method for described MSC calls outgoing call terminal called can for:
MSC calls adopts ISUP ISDN User Part or bearer independent call control Bearer Independent Call Control Protocol and called visited MSC to carry out alternately, calls out terminal called.
Wherein, described MSC calls with the method for color ring type to be played notice MRBT can for:
Network and the character that makes a call, employing ISDN User Part or Bearer Independent Call Control Protocol notice MRBT play multimedia CRBT or speech CRBT that described MSC calls makes a call according to called subscriber's attribute, calling subscriber.
Wherein, described calling terminal and terminal called all can be the 3G (Third Generation) Moblie 3G subscription of signatory elementary video phone VP business;
Described terminal called can be the contracted user of Multimedia Ring Back Tone service;
The calling that described calling terminal is initiated can be a video phone call.
A kind of system that realizes non-speech channel alternate multimedia color ring service, this system comprises MRBT, calling terminal and visited MSC thereof, terminal called and visited MSC thereof;
Wherein, described MRBT is used for carrying out the media negotiation first time with described calling terminal, and to described calling terminal play multimedia CRBT;
Described calling terminal is used for making a call to terminal called, and is used for initiating media negotiation for the first time to described MRBT, initiates media negotiation for the second time to described terminal called;
Described MSC calls, be used for the calling according to described calling terminal initiation, the described terminal called of outgoing call receives the call message that terminal called returns, notify MRBT color ring type to be played, and connect the speech channel between described calling terminal and the described MRBT;
Described terminal called is used for the calling according to described MSC calls, returns call message, and is used for carrying out the media negotiation second time with described calling terminal.
Wherein, can adopt ISDN User Part or Bearer Independent Call Control Protocol to carry out alternately between described MSC calls and the called visited MSC.
Wherein, described MSC can be made up of MSC server and media gateway MGW;
Can adopt ISDN User Part or Bearer Independent Call Control Protocol to carry out alternately between described MRBT and the MSC server; Can adopt time division multiplexing tdm E1, asynchronous transfer mode ATM or Internet Protocol IP carrying between MRBT and the MGW.
As seen from the above technical solution, the present invention realizes the calling outgoing call terminal called that the method for non-speech channel alternate multimedia color ring service is initiated according to calling terminal by MSC calls, and terminal called returns call message according to described calling; After MSC calls is received the call message that terminal called returns,, and connect speech channel between calling terminal and the MRBT with color ring type notice MRBT to be played; Then after calling terminal and MRBT successfully carry out the media negotiation first time, by MRBT to calling terminal play multimedia CRBT.So, realized non-speech channel alternate multimedia color ring service, and this implementation there is not extra requirement to network equipment.
In addition, terminal called is replied after the calling of calling terminal, can carry out the media negotiation second time by calling terminal and terminal called; After capability negotiation was finished for the second time, calling and called were conversed.So, make network equipment can adopt Multimedia Ring Back Tone service is provided with the on all four speech path control mode of speech CRBT, reduced and realized the requirement of Multimedia Ring Back Tone service network equipment, have equipment investment little, place capacity and performance are not had characteristics such as influence, and make the every user's of multimedia color ring back tone cost reduce greatly.
Description of drawings
Fig. 1 realizes the signaling process figure of Multimedia Ring Back Tone service for the built-in VIG function of existing MSC;
Fig. 2 is the media consultation process schematic diagram of MO and O_MSC in the built-in VIG function realization of the existing MSC Multimedia Ring Back Tone service;
Fig. 3 realizes the signaling process figure of Multimedia Ring Back Tone service for the built-in VIG function of existing MRBT;
Fig. 4 is the structural representation of protocol stack H.324M;
Fig. 5 is for being applied to the embodiment of the invention in the complete call flow schematic diagram of video call;
Fig. 6 realizes the system group network structural representation of non-speech channel alternate multimedia color ring service for the embodiment of the invention;
Fig. 7 realizes the signaling process figure of non-speech channel alternate multimedia color ring service for the embodiment of the invention;
Fig. 8 is the secondary media consultation process schematic diagram of embodiment of the invention calling terminal.
Embodiment
For making purpose of the present invention, technical scheme and advantage clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, the present invention is described in further detail.
The main thought of the embodiment of the invention is: the calling outgoing call terminal called that MSC calls is initiated according to calling terminal, and terminal called returns call message according to described calling; After MSC calls is received the call message that terminal called returns,, and connect speech channel between calling terminal and the MRBT with color ring type notice MRBT to be played; Then after calling terminal and MRBT successfully carry out the media negotiation first time, by MRBT to calling terminal play multimedia CRBT.The present invention can also carry out the media negotiation second time by calling terminal and terminal called after terminal called is replied the calling of calling terminal, after the second time, capability negotiation was finished, calling and called were conversed.So, make network equipment can adopt Multimedia Ring Back Tone service is provided with the on all four speech path control mode of speech CRBT.
In order to support the video call of 3G circuit domain, H.324M agreement need be supported in the 3G video terminal.Fig. 4 is the structural representation of protocol stack H.324M.Referring to Fig. 4, H.324M agreement is stipulated: set up in the process at a video call, after network side is finished out-of-band signalling control based on broadband integrated services digital network user part (ISUP) agreement or bearer independent call control (BICC) agreement, between terminal and the terminal or between terminal and the business platform, need carry out the in-band signalling control and treatment based on H.245, comprise that terminal capability negotiation, principal and subordinate determine, the logical channel opening/closing, send multi-meter etc.
The present invention increases the media negotiation function in advance in MRBT, make MRBT can serve as virtual terminal H.245 in media consultation process and finish media negotiation with calling terminal; And the present invention need increase the support to video and audio coding decoding form in MRBT, with to user's play multimedia CRBT.
Fig. 5 is for being applied to the embodiment of the invention in the complete call flow schematic diagram of video call.Referring to Fig. 5, this method may further comprise the steps:
Step 501: the calling outgoing call terminal called that MSC calls is initiated according to calling terminal, terminal called returns call message according to described calling.
Step 502: after MSC calls is received the call message that terminal called returns,, and connect speech channel between calling terminal and the MRBT with color ring type notice MRBT to be played.
Step 503: after calling terminal and MRBT successfully carried out the media negotiation first time, MRBT was to calling terminal play multimedia CRBT.
Step 504: terminal called is replied the calling of calling terminal, and after calling terminal and terminal called successfully carried out the media negotiation second time, calling and called were conversed.
Step 505: behind the calling and called end of conversation, free system resources.
So far, this video calling finishes.
Fig. 6 realizes the system group network structural representation of non-speech channel alternate multimedia color ring service for the embodiment of the invention.Referring to Fig. 6, this system is made up of MRBT, calling terminal and visited MSC thereof, terminal called and visited MSC thereof and HLR.
In the system, MRBT provides multimedia and media negotiation function as shown in Figure 6, be used for carrying out the media negotiation first time with described calling terminal, and to described calling terminal play multimedia CRBT;
Calling terminal is used for making a call to terminal called, initiates media negotiation for the first time to MRBT, and is used for carrying out the media negotiation second time with terminal called;
MSC calls is used for the calling according to described calling terminal initiation, and the described terminal called of outgoing call receives the call message that terminal called returns, and notifies MRBT color ring type to be played, and connects the speech channel between described calling terminal and the described MRBT;
Described terminal called is used for the calling according to described MSC calls, returns call message, and is used for carrying out the media negotiation second time with calling terminal;
Wherein, MSC is made up of MSC server (MSC Server) and media gateway (MGW), wherein, adopts ISDN User Part or Bearer Independent Call Control Protocol to carry out alternately between MSC Server and the MRBT; Adopt Time Division Multiplexing E1, ATM(Asynchronous Transfer Mode) or Internet Protocol (IP) carrying between MGW and the MRBT;
Can adopt ISDN User Part or Bearer Independent Call Control Protocol to carry out alternately between MSC calls and the called visited MSC.
Based on system shown in Figure 6, dialing visual telephone with 3G subscription in 3G network below is example, describes the method that the present invention realizes non-speech channel alternate multimedia color ring service in detail.
As shown in Figure 6 in the system, suppose caller and the called professional 3G subscription of signatory elementary video phone (VP) that is, and called is the contracted user of Multimedia Ring Back Tone service, and, in order to simplify description, suppose caller and calledly belong to same HLR, and between O_MSC and the T_MSC, adopt the ISDN User Part signaling to carry out alternately between MSC and the MRBT.
Fig. 7 realizes the signaling process figure of non-speech channel alternate multimedia color ring service for the embodiment of the invention.Referring to Fig. 7, this signaling process may further comprise the steps:
Step 701: called number is dialed in caller, initiates to connect (SETUP) message to O_MSC.
Step 702:O_MSC will send roaming information (SRI) message and send to HLR.
Step 703:HLR sends (PRN) message that Provides Roaming Number according to the SRI message that receives from O_MSC to the T_MSC at called place;
Step 704:T_MSC receives the PRN message that comes from HLR, and by PRN response (PRN_ACK) message, returns called roaming number to HLR.
Step 705:HLR will send to O_MSC by SRI response (SRI_ACK) message from the called roaming information that T_MSC obtains, and the SS_CODE field in this SRI response message is changed to 254 (0XFE), and the expression called subscriber opens Multimedia Ring Back Tone service.
Step 706:O_MSC analyzes, writes down called subscriber's attribute according to the SS_CODE that receives, and passes through initial address message (IAM) to the calling of T_MSC initiation to the called subscriber.
Step 707 is to step 709:T_MSC paging called (PAGING); Calledly return page response (PAGING_ACK), and send ALERTING message (Alerting) to T_MSC to T_MSC.
After step 710:T_MSC receives the Alerting message of called transmission, send Address Complete Message (ACM) to O_MSC.
Step 711:O_MSC sends ALERTING message (Alerting) to caller.
Step 712:O_MSC as called number, sends initial address message (IAM) to MRBT with called MSISDN, and notice MRBT play multimedia CRBT still is the speech CRBT in this IAM message;
In this step, O_MSC determines that the method for color ring type to be played is:
Called subscriber's attribute of O_MSC analytical procedure 606 records, the SS_CODE field is changed to 254 (0XFE) in this example, and the expression called subscriber opens Multimedia Ring Back Tone service;
The MSC that makes a call according to caller then, i.e. the network at O_MSC place, and the character that makes a call is correspondingly processed:
If the video call that this calling is caller to be initiated in 3G network is then determined notify MRBT play multimedia CRBT; If the ordinary call that this calling is caller to be initiated in 3G network or this calling are the callings that caller is initiated in other networks except that 3G network, then determine notify MRBT voice played CRBT;
If the play multimedia CRBT then continues execution in step 713, adopt subsequent step of the present invention to handle; If the voice played CRBT, then its subsequent treatment is identical with existing speech Ring Back Tone Technology.
Step 713 to step 714:MRBT to full message in O_MSC return address (ACM) and response message (ANM), prepare the play multimedia CRBT;
In this step, MRBT is according to caller and called number, and the inquiry called subscriber is at calling subscriber's customized information, and the multimedia color ring back tone that definite preparation is play according to the information that receives from O_MSC.
Step 715:O_MSC connects the speech channel between caller and the MRBT, and do not charge this moment.
Step 716: caller is initiated media negotiation to MRBT, and MRBT adopts that H.245 agreement and caller are carried out media negotiation and connected network;
Media negotiation in this step is the media negotiation first time of calling terminal.
Step 717:MRBT is to caller play multimedia CRBT.
Step 718: called subscriber answer calling subscriber's calling, the called transmission to T_MSC connects (CONNECT) message.
Step 719:T_MSC sends response message (ANM) to O_MSC.
After step 720:O_MSC receives the response message of T_MSC, remove with MRBT between carrying is connected, send release resource (REL) message to MRBT.
Step 721: after discharging resource, MRBT returns to discharge to O_MSC and finishes (RLC) message.
Step 722:O_MSC connects the speech channel between the calling and called, and begins caller is chargeed; Called initiation media negotiation adopts agreement H.245 to finish and called terminal media is consulted by caller;
In this step, media negotiation also can be initiated by caller, and the media consultation process in this step is the media negotiation second time of calling terminal.
Step 723: caller finish and called between media consultation process after, calling and called are conversed.
Step 724: when The Calling Party Hooks On, O_MSC sent to T_MSC and discharges resource (REL) message, removes the connection between the calling and called.
Step 725: after removing connection, T_MSC returns to discharge to O_MSC and finishes (RLC) message.
So far, finish the Signalling exchange that the present invention realizes the Multimedia Ring Back Tone service scheme.
Fig. 8 is the secondary media consultation process schematic diagram of embodiment of the invention calling terminal.Referring to Fig. 8, this process may further comprise the steps:
Step 801: calling terminal is consulted to the MRBT initiating capacity.
Step 802: calling terminal is initiated master-slave negotiation to MRBT.
Step 803: calling terminal is initiated multiplex consultation to MRBT.
Step 804: calling terminal initiates to open passage to MRBT.
Step 805: calling terminal is initiated closing passage to MRBT, and MRBT removes speech channel closing passage before.
Step 806: calling terminal initiates to close H.245 session to MRBT.
Step 807: calling terminal is consulted to the terminal called initiating capacity.
Step 808: calling terminal is initiated master-slave negotiation to terminal called.
Step 809: calling terminal is initiated multiplex consultation to terminal called.
Step 810: calling terminal initiates to open passage to terminal called.
Step 811: calling terminal is initiated closing passage to terminal called, and terminal called is removed speech channel closing passage before.
Step 812: calling terminal initiates to close H.245 session to terminal called.
In the media consultation process, step 807 to the negotiation of step 812 also can be initiated to calling terminal by terminal called as shown in Figure 8.
As seen from the above-described embodiment, the present invention realizes the calling outgoing call terminal called that the method for non-speech channel alternate multimedia color ring service is initiated according to calling terminal by MSC calls, and terminal called returns call message according to described calling; After MSC calls is received the call message that terminal called returns,, and connect speech channel between calling terminal and the MRBT with color ring type notice MRBT to be played; After calling terminal and MRBT successfully carried out the media negotiation first time, MRBT was to calling terminal play multimedia CRBT then.So, realized non-speech channel alternate multimedia color ring service, and network equipment has not been had extra requirement.
In addition, terminal called is replied after the calling of calling terminal, can carry out the media negotiation second time by calling terminal and terminal called; After capability negotiation was finished for the second time, calling and called were conversed.So, make network equipment can adopt Multimedia Ring Back Tone service is provided with the on all four speech path control mode of speech CRBT, reduced and realized the requirement of Multimedia Ring Back Tone service network equipment, have equipment investment little, place capacity and performance are not had characteristics such as influence, and make the every user's of multimedia color ring back tone cost reduce greatly.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.All any modifications of being done within the spirit and principles in the present invention, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1, a kind of method that realizes non-speech channel alternate multimedia color ring service is characterized in that, this method may further comprise the steps:
The calling outgoing call terminal called that caller Visited Mobile Switching Center MSC initiates according to calling terminal, terminal called returns call message according to described calling;
After MSC calls is received the call message that terminal called returns,, and connect speech channel between calling terminal and the MRBT with color ring type notice multimedia color ring back tone platform MRBT to be played;
After calling terminal and MRBT successfully carried out the media negotiation first time, MRBT was to calling terminal play multimedia CRBT;
Terminal called is replied the calling of described calling terminal, and calling terminal is initiated media negotiation for the second time to terminal called, and after calling terminal and terminal called successfully carried out the media negotiation second time, calling and called were conversed.
2, method according to claim 1 is characterized in that, the call message that described terminal called returns is ALERTING message.
3, method according to claim 1 is characterized in that, described first time, media negotiation was initiated to MRBT by calling terminal;
Described first time media negotiation and for the second time media negotiation adopt H.324M agreement to carry out.
4, method according to claim 1 is characterized in that, the method for described MSC calls outgoing call terminal called is:
MSC calls adopts ISUP ISDN User Part or bearer independent call control Bearer Independent Call Control Protocol and called visited MSC to carry out alternately, calls out terminal called.
5, method according to claim 1 is characterized in that, described MSC calls with the method for color ring type notice MRBT to be played is:
Network and the character that makes a call, employing ISDN User Part or Bearer Independent Call Control Protocol notice MRBT play multimedia CRBT or speech CRBT that described MSC calls makes a call according to called subscriber's attribute, calling subscriber.
6, method according to claim 1 is characterized in that, described calling terminal and terminal called are the 3G (Third Generation) Moblie 3G subscription of signatory elementary video phone VP business;
Described terminal called is the contracted user of Multimedia Ring Back Tone service;
The calling that described calling terminal is initiated is a video phone call.
7, a kind of system that realizes non-speech channel alternate multimedia color ring service, this system comprises MRBT, calling terminal and visited MSC thereof, terminal called and visited MSC thereof, it is characterized in that,
Described MRBT is used for carrying out the media negotiation first time with described calling terminal, and to described calling terminal play multimedia CRBT;
Described calling terminal is used for making a call to terminal called, and is used for initiating media negotiation for the first time to described MRBT, initiates media negotiation for the second time to described terminal called;
Described MSC calls, be used for the calling according to described calling terminal initiation, the described terminal called of outgoing call receives the call message that terminal called returns, notify MRBT color ring type to be played, and connect the speech channel between described calling terminal and the described MRBT;
Described terminal called is used for the calling according to described MSC calls, returns call message, and is used for carrying out the media negotiation second time with described calling terminal.
8, system according to claim 7 is characterized in that, adopts ISDN User Part or Bearer Independent Call Control Protocol to carry out alternately between described MSC calls and the called visited MSC.
9, system according to claim 7 is characterized in that, described MSC is made up of MSC server and media gateway MGW;
Adopt ISDN User Part or Bearer Independent Call Control Protocol to carry out alternately between described MRBT and the MSC server; Adopt time division multiplexing tdm E1, asynchronous transfer mode ATM or Internet Protocol IP carrying between MRBT and the MGW.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101114024A CN100450003C (en) | 2006-08-16 | 2006-08-16 | Method and system for implementing non-speech channel alternate multimedia color ring service |
| CN2007800002895A CN101317431B (en) | 2006-03-10 | 2007-03-07 | Multimedia ringtone platform, method and system for realizing multimedia color ring back tone service |
| PCT/CN2007/000737 WO2007104241A1 (en) | 2006-03-10 | 2007-03-07 | A device and system for realizing the multimedia ring back tone service and a method thereof |
| EP07711058.3A EP2012514B1 (en) | 2006-03-10 | 2007-03-07 | A device and system for realizing the multimedia ring back tone service and a method thereof |
| US11/964,075 US8131265B2 (en) | 2006-03-10 | 2007-12-26 | System and method for implementing multimedia ring back tone service |
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| CNB2006101114024A CN100450003C (en) | 2006-08-16 | 2006-08-16 | Method and system for implementing non-speech channel alternate multimedia color ring service |
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| CN100450003C true CN100450003C (en) | 2009-01-07 |
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| CN101141692A (en) * | 2007-10-11 | 2008-03-12 | 中兴通讯股份有限公司 | Multimedia color bell service implementing method |
| CN101141700B (en) * | 2007-10-18 | 2013-06-05 | 中兴通讯股份有限公司 | Multimedia color bell service implementing method |
| CN101247437B (en) * | 2008-03-04 | 2012-06-27 | 华为技术有限公司 | Method and device for implementing personalized ring back tone in multi-party conversation |
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