CN101141519A - Method and device for determining caller's announcement - Google Patents

Abstract

Translated fromChinese

本发明提供了一种主叫放音决定方法，用于服务器指示主叫装置播放回铃音，包括以下步骤：步骤a，如果判断被叫装置发送了送音指示，则服务器向主叫装置发送包含送音指示信息的消息；以及步骤b，主叫装置收到消息后，根据送音指示信息的指示来播放回铃音。本发明还提供了一种主叫放音决定装置。

The present invention provides a method for determining the calling device to play the ringback tone, which is used for the server to instruct the calling device to play the ring back tone, including the following steps: step a, if it is judged that the called device has sent the tone sending instruction, the server sends the calling device A message containing the tone sending indication information; and step b, after receiving the message, the calling device plays the ring back tone according to the indication of the tone sending indication information. The invention also provides a caller announcement decision device.

Description

Be used to determine the method and apparatus of calling audio playback

Technical field

The present invention relates to the communications field, more specifically, relate to the method and apparatus that is used to determine calling audio playback.

Background technology

3GPP (The 3rd Generation Partnership Project, third generation collaborative project) IMS the most at last is incorporated in its standard.IMS (IP Multimedia subsystem, internet protocol multimedia subsystem) be one be independent of access technology based on IP (InternetProtocol, Internet protocol) standards system, it and existing voice and data network can intercommunications, comprise PSTN (Public Switched Telephone Network, public switched telephone network (PSTN)), ISDN (Integrated Services Digital Network, Integrated Service Digital Network(ISDN)), GSM (Global system for mobile communication, the global system that is used for mobile communication) and CDMA (Code Division Multiple Access, code division multiple access) etc.3GPP IMS based on SIP (Session Initial Protocol, Session initiation Protocol) agreement is present more perfect architecture, is just obtaining increasing approval in advanced operator, main flow equipment vendors and other normal structures.

Usually all is that calling and called have been finished media negotiation in ring in 3G IMS field, caller this moment should be listened ring-back tone, called should ring.But if this moment, the called RTP (Real-time Transport protocol, RTP) that does not send ring-back tone flowed, then ring-back tone can not be correctly listened in caller.

At present, at above-mentioned situation, it is to solve like this that a kind of method is arranged.When receiving 180 message, IMS territory media gateway or terminal are gone to check whether rtp streaming is arranged, if having, are then changed this rtp streaming corresponding physical information, as ring-back tone; If there is not the medium rtp streaming, the then media gateway in IMS territory or terminal plays ring-back tone.Fig. 1 shows the message flow chart of the decision calling audio playback in the correlation technique.

As shown in Figure 1, the message flow of decision calling audio playback may further comprise the steps in the correlation technique:

Step S102, SIP A sends INVITE to SIP B;

Step S104, SIP B returns 183, takes back the SDP (SessionDescription Protocol, Session Description Protocol) of SIP B, and SIP A begins reservation of network bandwidth.

S106, SIP A returns PRACK, acknowledges receipt of 183.

S108, SIP B returns 200, acknowledges receipt of PRACK.

UPDATE notice SIP B is sent in the success of S110:SIP A reservation of network bandwidth.

S112:SIP B returns 200, acknowledges receipt of UPDATE.

S114:SIP B receives that the network bandwidth reserves successfully, sends 180 and gives SIP A.SIP B gives ring simultaneously.After SIP A receives 180, handle referring to following.

S116:SIP A returns PRACK, acknowledges receipt of 180.

S118:SIP B returns 200, acknowledges receipt of PRACK.

S120:SIP B off-hook is replied, and returns 200 to SIP A.

S122:SIP A returns ACK, acknowledges receipt of 200, and SIP A and SIP B begin conversation.

In above-mentioned flow process, after if sip terminal A receives 180, carried SDP in 180, the two-way media passage of sip terminal A and B has been networked and has been set up, if but do not start the rtp streaming journey that SIP B sends ring-back tone for SIP A, what then this moment, SIP A heard will be quiet.Whether received rtp streaming under the above-mentioned situation so SIP A detects, if do not have, SIP A is with regard to own playing RBT, just as receiving the 180 message playing RBT voluntarily of not being with SDP.

Above-mentioned dependence gateway or terminal oneself detect the method for rtp streaming with playing RBT, not only deal with and consume software and hardware resources, and present most of terminal are not supported this method or are supported difficulty.

Therefore, people wish to provide a kind of comparatively simple playback decision solution, come the accurate information to gateway or terminal indication ring-back tone.

Summary of the invention

The present invention aims to provide a kind of calling audio playback determining method and device, send the sound indication information by directly being provided with in SDP, must rely on gateway or terminal oneself to detect the problem of rtp streaming with playing RBT to solve in the correlation technique.

According to an aspect of the present invention, a kind of calling audio playback determining method is provided, be used for sip server indication caller device playing RBT, may further comprise the steps: step a, if judging that called device has sent send sound indication, then server sends to the caller device and comprises the message of sending the sound indication information; And step b, after the caller device is received message, come playing RBT according to the indication of sending the sound indication information.

In above-mentioned calling audio playback determining method, comprise response message in the message.

In above-mentioned calling audio playback determining method, step a may further comprise the steps: if judging that called device has sent send sound indication, just carry SDP in response message, be provided with in SDP and send the sound indication information, indicate the caller device to play the ring-back tone of called device; And if judge that called device does not send and send sound indication, just directly transmission do not carry SDP response message to the caller device, indication caller device playing RBT.

In above-mentioned calling audio playback determining method, step a may further comprise the steps: server sends to the caller device with the Media Stream that called device sent, and oneself handles ring-back tone by it.

In above-mentioned calling audio playback determining method, the caller device comprises H248 gateway or MGCP gateway.

In above-mentioned calling audio playback determining method, step a may further comprise the steps: do not send Media Stream if judge called device, then indicate caller device playing RBT.

In above-mentioned calling audio playback determining method, send the sound indication information to comprise capable attribute description of a or header field.

In above-mentioned calling audio playback determining method, server comprises client server back-to-back.

In above-mentioned calling audio playback determining method, message is sip message.

In above-mentioned calling audio playback determining method, step a judge activated to the passage of called device after execution.

According to a further aspect in the invention, a kind of calling ring-play choosing device is provided, be used for server indication caller device playing RBT, comprise: send the sound indication information that module is set, if be used for judging that called device has sent send sound indication, server sent to the caller device comprise the message of sending the sound indication information; And the playing RBT module, be used to make the caller device to receive message after, come playing RBT according to the indication of sending the sound indication information.

In above-mentioned calling ring-play choosing device, comprise response message in the message.

In above-mentioned calling ring-play choosing device, send the sound indication information that module is set and comprise that SDP is provided with module: if be used for judging that called device has sent send sound indication, just carry SDP in response message, be provided with in SDP and send the sound indication information, indication caller device is play the ring-back tone of called device; And if judge that called device does not send and send sound indication, just directly transmission do not carry SDP response message to the caller device, indication caller device playing RBT.

In above-mentioned calling ring-play choosing device, send the sound indication information that module is set and be used to make server that the Media Stream that called device sent is sent to the caller device, oneself handle ring-back tone by it.

In above-mentioned calling ring-play choosing device, the caller device comprises H248 gateway or MGCP gateway.

In above-mentioned calling ring-play choosing device, send the sound indication information that module is set and comprise if judge called device and do not send Media Stream, then indicate caller device playing RBT.

In above-mentioned calling ring-play choosing device, send the sound indication information to comprise capable attribute description of a or header field.

In above-mentioned calling ring-play choosing device, server comprises client server back-to-back.

In above-mentioned calling ring-play choosing device, message is sip message.

In above-mentioned calling ring-play choosing device, send the sound indication information be provided with module judge activated to the passage of called device after to caller device transmission message.

By technique scheme, the present invention has realized following technique effect:

Send the sound indication information by directly in SDP, being provided with, to indicate called device whether to send Media Stream, make to rely on gateway or terminal oneself to detect rtp streaming, thereby reduced consumption, and can be applicable to existing most of terminal equipment software and hardware resources with playing RBT.

Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, perhaps understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the specification of being write, claims and accompanying drawing.

Description of drawings

Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:

Fig. 1 shows the message flow chart of the decision calling audio playback in the correlation technique;

Fig. 2 shows according to calling audio playback determining method of the present invention;

Fig. 3 shows according to calling ring-play choosing device of the present invention;

Fig. 4 shows conventional NGN networking diagram;

Message flow chart when Fig. 5 shows user according to an embodiment of the invention for sip user; And

Fig. 6 shows the message flow chart of user when the H248 gateway according to another embodiment of the invention.

Embodiment

Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the present invention in detail.

Fig. 2 shows according to calling audio playback determining method of the present invention, and as shown in Figure 2, this method may further comprise the steps:

Step S202, if judging that called device has sent send sound indication, then server sends to the caller device and comprises the message of sending the sound indication information; And

Step S204 after the caller device is received message, comes playing RBT according to the indication of sending the sound indication information.

Alternatively, comprise response message in the message.

Alternatively, step S202 may further comprise the steps: if judging that called device has sent send sound indication, just carry SDP in response message, be provided with in SDP and send the sound indication information, indicate the caller device to play the ring-back tone of called device; And if judge that called device does not send and send sound indication, just directly transmission do not carry SDP response message to the caller device, indication caller device playing RBT.

Alternatively, step S202 may further comprise the steps: server sends to the caller device with the Media Stream that called device sent, and oneself handles ring-back tone by it.

Alternatively, the caller device comprises H248 gateway or MGCP gateway.

Alternatively, step S202 may further comprise the steps: do not send Media Stream if judge called device, then indicate caller device playing RBT.

Alternatively, send the sound indication information to comprise capable attribute description of a or header field.

Alternatively, server comprises client server back-to-back.

Alternatively, message is sip message.

Alternatively, step S202 judge activated to the passage of called device after execution.

Fig. 3 shows according to calling ring-play choosing device 300 of the present invention, and as shown in Figure 3, thisdevice 300 comprises:

Send the sound indication information thatmodule 302 is set,, server is sent to the caller device comprise the message of sending the sound indication information if be used for judging that called device has sent send sound indication; And

PlayingRBT module 304, be used to make the caller device to receive message after, come playing RBT according to the indication of sending the sound indication information.

Alternatively, comprise response message in the message.

Alternatively, send the sound indication information thatmodule 302 is set and comprise that SDP is provided with the module (not shown): if be used for judging that called device has sent send sound indication, just carry SDP in response message, be provided with in SDP and send the sound indication information, indication caller device is play the ring-back tone of called device; And if judge that called device does not send and send sound indication, just directly transmission do not carry SDP response message to the caller device, indication caller device playing RBT.

Alternatively, send the sound indication information thatmodule 302 is set and be used to make server that the Media Stream that called device sent is sent to the caller device, oneself handle ring-back tone by it.

Alternatively, the caller device comprises H248 gateway or MGCP gateway.

Alternatively, send the sound indication information thatmodule 302 is set and comprise if judge called device and do not send Media Stream, then indicate caller device playing RBT.

Alternatively, send the sound indication information to comprise capable attribute description of a or header field.

Alternatively, server comprises client server back-to-back.

Alternatively, message is sip message.

Alternatively, send the sound indication information be provided withmodule 302 judge activated to the passage of called device after to caller device transmission message.

Describe according to embodiments of the invention below in conjunction with accompanying drawing.

For a user under the NGN (Next Generation Net, next generation network), actual networking can be with reference to figure 4.Fig. 4 shows conventional NGN networking diagram, and wherein, B2BUA SERVER (Back to back user agent Server, server back-to-back) can be general sip server, in order to connect PSTN territory and other sip proxy server equipment.Server is a kind of equipment that is used to change the SIP signaling back-to-back, can be used for and MGCP, the intercommunication of H248 gateway, also can be used for the network interworking with PSTN.Common entity is exactly soft switch now.Here a sip user of directly hanging down with B2BUA SERVER is that example illustrates and carries the usage of sending the sound deictic word in 180 message (being response message), and message flow sees also Fig. 5.May further comprise the steps:

Step S502, SIP UA (User Agent, user agent) makes a call, and sends INVITE to B2BUA SERVER, and wherein SIP UA is exactly a sip terminal, and common entity is as the mobile phone of realizing Session Initiation Protocol, fixed telephone terminal etc.;

Step S504, B2BUA SERVER sends INVITE to SIP PROXY territory, and starts precondition;

Step S506, B2BUA SERVER receives the response of UPDATE, calling and called have been finished resource reservation;

Step S508, SIP PROXY sends 180, the beginning ring;

Step S510, B2BUA SERVER sends 180 to SIP UA.B2BUA SERVER can have two kinds of ways according to the function of SIP UA terminal.A kind of way is, send sound indication (the capable attribute description of a of SDP) if SIP UA can discern, and the sound indication of sending that B2BUA SERVER just will be called sends to SIP UA, and ring-back tone is by its own correct processing of selecting; Another kind of way is, if can not correctly discerning, SIP UA send the sound indication, if B2BUA SERVER judgement is sent the sound indication from called having received so, just in 180 message, carry SDP, SIP UA plays called ring-back tone, do not indicate if B2BUA SERVER so far receives from the called sound that send, and indication does not send Media Stream, just directly send 180 (not carrying SDP) and give SIP UA, SIP UA is playing RBT voluntarily;

Step S512, called off-hook;

Step S514 sends off-hook 200 message to caller; And

Step S516, the calling and called conversation.

In one embodiment of the invention, proposing to send in 180 message sound indication to adopt carries out the mode of the capable attribute description of its SDP that carries increase a.According to one embodiment of present invention, it is as follows that 180 message of the present invention are sent the grammer of sound indication (the capable attribute description of a of SDP):

a＝sendmedia:<send-media-indicator>

send-media-indicator＝yes/no

For example carrying this send the part SDP of sound indication to be described below:

m＝audio50000RTP/AVP8

a＝rtpmap:8PCMA/8000

a＝sendmedia:yes

When the SIP UA among Fig. 5 is H248 gateway (or MGCP gateway), then more demonstrate the convenience of sending the sound indication that aforesaid way is realized.Fig. 6 shows the message flow chart of user when the H248 gateway according to another embodiment of the invention.As shown in Figure 6, when B2BUA SERVER receives 180 message, detect the up-to-date media channel attribute that obtains, for example be from called key:

m＝audio50000RTP/AVP8

a＝rtpmap:8PCMA/8000

a＝sendmedia:no

Represent the called Media Stream that do not send so, B2BUA SERVER checks this indication, represents the called Media Stream that do not send, and B2BUA SERVER indication H248 gateway (or MGCP gateway) is put ring-back tone for the user.

The indication of indicating among the SDP is not limited in 180 message, also can be the message of other response.

This is to increase indication in SDP, and this indication also can be placed on other place, in the SIP header field.

Certainly the capable attribute description of this a can be used for the SDP of other message, and represent currently provides this SDP person not plan the transmission Media Stream, although passage activates.

The step that the realization of each step is similar among Fig. 5 among Fig. 6 is described, and specifically, may further comprise the steps:

Step S602: user's off-hook, the H248 gateway reports server

Step S604:B2B server echoes and answers, and acknowledges receipt of off hook signal.

The indication of step S606:B2B server is sent dialing tone and is issued dialing list (Digitmap).

Step S608:H248 gateway echoes should.

Step S610:H248 report of user is dialled the number.

Step S612:B2B server echoes and answers, and acknowledges receipt of number.

Step S614:B2B server sends the ADD order, creates local the connection.

Step S616:H248 gateway echoes and answers, and returns the SDP information of gateway.

Step S618:B2B server root a tree name user dials the number, and locatees calledly, sends INVITE.Information such as called 183 are finished the SDP information interaction, resource reservation.

Step S620:B2B server is received called SDP.

Step S622:B2B server receives 180, according to the called playback sign of receiving.If indicate called playback, then B2B server connection H248 gateway is play called playback, if indicate called not playback, then B2B server indication H248 gateway is put local ring-back tone.

Step S624:H248 gateway echoes should.

Step S626: called party answer.The B2B server sends order to the H248 gateway and connects the calling and called conversation.

Step S628:H248 gateway echoes should.

Step S630, so far, the calling and called talking path is set up, and can converse.

As can be seen from the above description, the present invention has realized following technique effect:

Send the sound indication information by directly in SDP, being provided with, to indicate called device whether to send Media Stream, make to rely on gateway or terminal oneself to detect rtp streaming, thereby reduced consumption, and can be applicable to existing most of terminal equipment software and hardware resources with playing RBT.

Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.Should be understood that the variation in these concrete enforcements is conspicuous for a person skilled in the art, do not break away from spiritual protection range of the present invention.

The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (14)

Translated fromChinese

1.一种主叫放音决定方法，用于服务器指示主叫装置播放回铃音，其特征在于，包括以下步骤：1. A method for determining the caller's playing sound, used for server to instruct the calling device to play the ringback tone, is characterized in that, comprising the following steps:步骤a，如果判断被叫装置发送了送音指示，则所述服务器向所述主叫装置发送包含送音指示信息的消息；以及Step a, if it is determined that the called device has sent a tone sending instruction, the server sends a message including the tone sending instruction information to the calling device; and步骤b，所述主叫装置收到所述消息后，根据所述送音指示信息的指示来播放回铃音。Step b, after receiving the message, the calling device plays a ringback tone according to the instruction of the tone sending instruction information.2.根据权利要求1所述的主叫放音决定方法，其特征在于，所述消息中包括响应消息，所述步骤a包括以下步骤：2. The calling party's announcement decision method according to claim 1, wherein said message comprises a response message, and said step a comprises the following steps:如果判断所述被叫装置发送了送音指示，就在所述响应消息中携带会话描述协议，在所述会话描述协议中设置所述送音指示信息，指示所述主叫装置播放所述被叫装置的回铃音；以及If it is judged that the called device has sent a tone sending instruction, the session description protocol is carried in the response message, the tone sending instruction information is set in the session description protocol, and the calling device is instructed to play the called the ringback tone of the calling device; and如果判断所述被叫装置未发送送音指示，就直接发送不携带所述会话描述协议的所述响应消息给所述主叫装置，指示所述主叫装置播放回铃音。If it is determined that the called device has not sent the tone sending instruction, directly send the response message not carrying the session description protocol to the calling device, instructing the calling device to play a ringback tone.3.根据权利要求2所述的主叫放音决定方法，其特征在于，所述步骤a包括以下步骤：3. The caller's announcement decision method according to claim 2, characterized in that, said step a comprises the following steps:所述服务器将所述被叫装置所发送的送音指示发送给所述主叫装置，由其自己处理回铃音。The server sends the tone sending indication sent by the called device to the calling device, and processes the ring-back tone by itself.4.根据权利要求1所述的主叫放音决定方法，其特征在于，所述主叫装置包括H248网关或MGCP网关。4. The method for determining the caller's announcement according to claim 1, wherein the calling device comprises an H248 gateway or an MGCP gateway.5.根据权利要求4所述的主叫放音决定方法，其特征在于，所述步骤a包括以下步骤：如果判断所述被叫装置没有发送媒体流，则指示所述主叫装置播放回铃音。5. The calling method according to claim 4, characterized in that said step a comprises the following steps: if it is determined that said called device does not send a media stream, then instruct said calling device to play a ringback sound.6.根据权利要求1至5中任一项所述的主叫放音决定方法，其特征在于，所述送音指示信息包括a行属性描述或头域。6. The calling party's announcement decision method according to any one of claims 1 to 5, characterized in that the announcement indication information includes a line attribute description or a header field.7.根据权利要求1至5中任一项所述的主叫放音决定方法，其特征在于，所述步骤a在判断至所述被叫装置的通道已经激活之后执行。7. The method for determining the caller's announcement according to any one of claims 1 to 5, wherein the step a is executed after it is determined that the channel to the called device has been activated.8.一种主叫放音决定装置，用于服务器指示主叫装置播放回铃音，其特征在于，包括：8. A caller's announcement determining device is used for server to instruct the calling device to play ringback tone, it is characterized in that, comprising:送音指示信息设置模块，用于如果判断被叫装置发送了送音指示，则使所述服务器向所述主叫装置发送包含送音指示信息的消息；以及A tone sending indication information setting module, configured to cause the server to send a message containing the tone sending indication information to the calling device if it is determined that the called device has sent a tone sending indication; and播放回铃音模块，用于使所述主叫装置收到所述消息后，根据所述送音指示信息的指示来播放回铃音。The ring-back tone playing module is used to make the calling device play a ring-back tone according to the indication of the tone sending indication information after receiving the message.9.根据权利要求8所述的主叫放音决定装置，其特征在于，所述消息中包括响应消息，所述送音指示信息设置模块包括：9. The caller's announcement decision device according to claim 8, wherein the message includes a response message, and the tone sending indication information setting module includes:会话描述协议设置模块：用于如果判断所述被叫装置发送了送音指示，就在所述响应消息中携带会话描述协议，在所述会话描述协议中设置所述送音指示信息，指示所述主叫装置播放所述被叫装置的回铃音；以及如果判断所述被叫装置未发送送音指示，就直接发送不携带所述会话描述协议的所述响应消息给所述主叫装置，指示所述主叫装置播放回铃音。The session description protocol setting module: used to carry the session description protocol in the response message if it is judged that the called device has sent the tone sending instruction, and set the tone sending instruction information in the session description protocol to indicate the The calling device plays the ringback tone of the called device; and if it is judged that the called device has not sent a tone indication, it directly sends the response message that does not carry the session description protocol to the calling device to instruct the calling device to play a ringback tone.10.根据权利要求9所述的主叫放音决定装置，其特征在于，所述送音指示信息设置模块用于使所述服务器将所述被叫装置所发送的媒体流发送给所述主叫装置，由其自己处理回铃音。10. The device for determining the calling party's announcement according to claim 9, wherein the voice sending instruction information setting module is used to enable the server to send the media stream sent by the called device to the calling party. The calling device handles the ringback tone by itself.11.根据权利要求8所述的主叫放音决定装置，其特征在于，所述主叫装置包括H248网关或MGCP网关。11. The device for determining the announcement of the calling party according to claim 8, wherein the calling device comprises an H248 gateway or an MGCP gateway.12.根据权利要求11所述的主叫放音决定装置，其特征在于，所述送音指示信息设置模块包括如果判断所述被叫装置没有发送媒体流，则指示所述主叫装置播放回铃音。12. The device for determining the caller's sound playback according to claim 11, wherein the setting module of the sound sending indication information includes instructing the calling device to play back if it is judged that the called device has not sent a media stream. ring tone.13.根据权利要求8至12中任一项所述的主叫放音决定装置，其特征在于，所述送音指示信息包括a行属性描述或头域。13. The calling party's announcement decision device according to any one of claims 8 to 12, characterized in that, the tone sending instruction information includes a line attribute description or a header field.14.根据权利要求8至12中任一项所述的主叫放音决定装置，其特征在于，所述送音指示信息设置模块在判断至所述被叫装置的通道已经激活之后向所述主叫装置发送所述消息。14. The device for determining the caller's announcement according to any one of claims 8 to 12, characterized in that, after the said tone sending indication information setting module judges that the channel to the called apparatus has been activated, it sends The calling device sends the message.

Images