CN100486282C - Method for realizing interactive voice - Google Patents
Method for realizing interactive voice Download PDFInfo
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- CN100486282C CN100486282C CN 200610065193 CN200610065193A CN100486282C CN 100486282 C CN100486282 C CN 100486282C CN 200610065193 CN200610065193 CN 200610065193 CN 200610065193 A CN200610065193 A CN 200610065193A CN 100486282 C CN100486282 C CN 100486282C
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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
Abstract
The present invention discloses realizing speech interactive method. It contains user terminal through AS transmitting Invite message to speech interactive function provided MRS, said Invite message carrying user terminal SDP information; said MRS through said AS feeding back 180 Ringing message to user terminal, and said 180 Ringing message carrying MRS SDP information; said user terminal MRS according to both sides interactive SDP information to establish realtime transmission protocol RTP media channel, and through said established RTP media channel to make speech interaction. Above-mentioned method can advance establish RTP media channel, avoiding network service provider collecting fee to speech interactive process between user terminal and MRS, thereby reducing service provider operating cost.
Description
Technical field
The present invention relates to next generation network (NGN, Next Generation Network) technology, specially refer to a kind of method that in NGN, realizes interactive voice.
Background technology
Session initiation protocol (SIP, Session Initial Protocol) be by internet engineering task group (IETF, Internet Engineering Task Force) application controls (signaling) agreement that puts forward, as the implication of its name representative, SIP is mainly used in initiation session.Specifically, the Multimedia session process that SIP can be used for creating, revise and a plurality of participants that terminate participate in, it is one of core protocol of NGN.
Described session is meant two application layer incidence relations between the SIP node.And described SIP node can be user agent (UA, User Agent), sip agent, registrar, user agent (back to back agent), location server or the like end to end.Wherein, the user agent generally can be known as application server (AS, Application Server) end to end.Described application server is under the jurisdiction of the service provider, and it is mainly used in to the terminal use various value-added services are provided.
In NGN, for be implemented in ordinary call and the intelligent call process to concentrate playback, collect the digits, the support of media resource such as meeting, introduced Media Resource Server (MRS, Media ResourceServer).Can realize such as broadcasting notice (PA, Play Announcement) and broadcasting notice and collect number voice interactive functions such as (PAC, Play Announcement and Collect Digits) by MRS.
In intelligent call, the concrete message flow of interactive voice mainly comprises as shown in Figure 1 between realization MRS and the user terminal:
101, the user dials an intelligent call number by user terminal A after, user terminal A sends invites (Invite) message request network to provide this intelligent call number pairing IN service, and this Invite message is routed to the AS that is responsible for handling this intelligent call subsequently;
102, analyze after the IN service of being asked need use voice interactive functions such as PA or PAC at described AS, with described Invite forwards to the MRS that is used to provide voice interactive function;
103, described MRS sends ALERTING message (180 Ringing) to described AS, shows that self has performed the preparation of the voice interactive function that provides required;
104, described AS arrives described user terminal A with the 180 Ringing forwards that received;
105, described MRS sends response message (200 OK) to described AS, shows self to have performed the preparation of setting up RTP (RTP, Real-Time Transport Protocol) media channel with described user terminal A;
106, described AS gives described user terminal A with the 200 OK forwards that received;
107, described user terminal A sends response message (ACK) to described MRS, and as the final response of described Invite message, the indication user side successfully receives the 200 OK message that MRS sends;
108, set up the RTP media channel between described user terminal A and the MRS;
In above-mentioned steps 101～108, in order between described user terminal A and MRS, to set up described RTP media channel, user terminal A as the calling party need be with the device capability information of self, for example speech capability, image ability etc., and the Internet protocol (IP of RTP media channel, InternetProtocol) address and port address information etc. are loaded into Session Description Protocol (SDP, SessionDescription Protocol) in the bag, and, send to MRS as the callee with the content of SDP bag as sip message.Equally, also need such as device capability informations such as speech capability, image abilities as callee's MRS, and the IP address of RTP media channel and port address information is loaded in the SDP bag, and as the content of sip message, send to user terminal A, to hold consultation as the calling party.Described user terminal A and MRS set up described RTP media channel according to negotiation result.According to the regulation of Session Initiation Protocol, the calling party can be carried on the SDP bag of self in described Invite message or the ACK message, and the callee can be carried on the SDP bag of self in described 180 Ringing or the 200 OK message.
109, described MRS provides voice interactive function by the RTP media channel of setting up for described user terminal A, for example begins the playback notice or carry out collection to number that the user dials in the playback notice, promptly carries out PA or PAC and operates;
110, after finishing described voice interactive function, described MRS uses session initiation protocol informational message (SIP INFO) or HTML (Hypertext Markup Language) to obtain message (HTTP GET) user data of collecting is submitted to described AS;
After above-mentioned steps, AS can also send interactive voice request next time to described MRS, at this moment, will return step 109, and promptly MRS finishes the interactive voice of being asked by RTP media channel and the user terminal A set up;
111, after described AS obtains sufficient user data, indication MRS can remove and user terminal A between the RTP media channel set up.
Like this, by above-mentioned voice interactive function, described AS can obtain sufficient user data, and will provide the IN service of being asked for the user according to the user data that is obtained.For example, prepayment intelligent is called out, after described AS obtains prepaid user's card number, password and called number by the interactive voice process between MRS and the user terminal, AS can be routed to the callee with this intelligent call according to the called number that is obtained, behind end of conversation, certain expense is collected in this calling simultaneously according to prepaid user's card number and password.
In said process, between described user terminal A and MRS, set up the RTP media channel, and when utilizing the RTP media channel set up to carry out the interactive voice process, because described RTP media channel will occupy actual Internet resources, Virtual network operator will be asked for certain expense to the service provider that IN service is provided usually.Usually, in existing intelligent call flow process, when the callee to the calling party send 200 OK message show self reply after, Virtual network operator just will begin current calling has been chargeed.Yet for intelligent call that the front is described, the service provider should just to user's charge, should not collect the charges to the user during the foundation of intelligent call only when the user enjoys IN service.For example, for prepayment intelligent service, in the intelligent call of prepaid user as the calling party, the expense of service provider in only should be during the prepaid user collects this user and incoming call, and should not collect carry out when carrying out voice interactive function between the prepaid user and MRS in this prepaid call card number, password and called number gather during in expense.Thereby, in this case, just caused need be when between user terminal and MRS, the carrying out interactive voice shared Internet resources of service provider self to the Virtual network operator defrayment, this will increase service provider's operation cost greatly.
Summary of the invention
In order to address the above problem, the invention provides a kind of method that realizes voice interactive function, Virtual network operator can not collected the charges to the service provider by shared Internet resources when user terminal and MRS carry out the interactive voice process in the intelligent call process, thus the operation cost of having saved the service provider.
The method of realization interactive voice of the present invention comprises:
A, user terminal send to invite message to via application server AS provides the Media Resource Server of voice interactive function MRS, and carries the Session Description Protocol SDP information of user terminal in described invitation message;
B, described MRS return ring 180 Ringing message to described user terminal via described AS, and the SDP information of carrying MRS in described 180 Ringing message;
C, described user terminal and MRS set up the realtime transmission protocol RTP media channel according to both sides' interactive SDP information, and the RTP media channel that passes through to be set up carries out interactive voice.
Described method further comprises after step C:
D, after finishing interactive voice, described MRS uses SIP INFO or HTTP GET message that the user data of collecting is submitted to described AS.
Described method further comprises: if ask interactive voice process next time, then AS utilizes described SIP INFO of step D or HTTP GET message that interactive voice request is next time sent to MRS.
Described method further comprises after step D:
E, described AS provide the IN service of being asked according to the user data from described MRS for described user terminal.
Carrying user terminal SDP information in the described invitation message comprises: device capability information and corresponding port address information, and the internet protocol address of RTP media channel or the like, the SDP information of carrying MRS in the described 180 Ringing message comprises: device capability information and corresponding port address information, and the internet protocol address of RTP media channel or the like.
Described device capability information comprises: the speech capability information of equipment and image energy force information etc.
Described interactive voice is for broadcasting notice or broadcasting notice and collect number.
This shows, realize in the method for voice interactive function in the present invention, carry out capacity of equipment by Invite message and 180 Ringing message between user terminal and the MRS and consult, thereby can realize the foundation in advance of RTP media channel, realize the simplification of information interaction flow process.
In addition, in method of the present invention, because before setting up the RTP media channel between user terminal and the MRS, MRS does not return 200 OK message, thereby Virtual network operator will can not charge to carrying out the interactive voice process subsequently, thereby reduce service provider's operation cost.
Further, by adopting method provided by the present invention, Virtual network operator can adopt different charging policy according to the decision of the actual conditions of IN service: can be in calling user dials begin at once behind the access code of IN service to charge, also can really set up back (for example returning 200OK message to the calling subscriber at AS) at intelligent call begins to charge again, thereby realize that it is free that the calling subscriber is dialed some IN service access code, charges and dial some IN service sign indicating number.For example: number 200 services is a kind of free intelligent access code, and 17930 is exactly the intelligent access code of a kind of charge.
Description of drawings
Fig. 1 is the message flow chart that realizes described voice interactive function in the prior art;
Fig. 2 is the message flow chart of the described voice interactive function of the described realization of the preferred embodiment of the present invention.
Embodiment
For the purpose, technical scheme and the advantage that make invention is clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, the present invention is described in further detail.
Consider in existing intelligent call process, after the callee sends 200 OK acknowledgement messagings, Virtual network operator will begin current calling to charge, thereby, shared Internet resources are collected the charges when Virtual network operator carries out interactive voice to user terminal and MRS, can be to realizing in the existing intelligent call that the message flow of interactive voice process improve.
The concrete message flow of interactive voice mainly comprises as shown in Figure 2 between the preferred embodiment of the present invention described realization MRS and the user terminal:
201, after the user dials the intelligent call number by user terminal A, user terminal A is sent Invite message request network provides this intelligent call number pairing IN service, and this Invite message is routed to the AS that is responsible for handling this intelligent call subsequently.
In this step, user terminal A as the calling party need be with the device capability information of self, for example speech capability, image ability etc., and the IP address of RTP media channel and port address information etc. are loaded in the SDP bag, and this SDP bag is carried in the described Invite message, send to MRS as the callee.
202, analyze after the IN service of being asked need use voice interactive functions such as PA/PAC at described AS, with described Invite forwards to the MRS that voice interactive function is provided.
203, described MRS sends 180 Ringing message to described AS, shows that described MRS has performed the preparation of the voice interactive function that provides required.
In this step, MRS as the callee need be with the device capability information of self, for example speech capability, image ability etc., and the IP address of RTP media channel and port address information etc. are loaded in the SDP bag, and this SDP bag is carried in the described 180 Ringing message, send to user terminal A as the calling party.
204, described AS arrives described user terminal A with the 180 Ringing forwards that received.
By above-mentioned steps 201～204, finish the negotiation of capacity of equipment between the two between described user terminal A and the MRS.
205, described user terminal A and MRS set up the RTP media channel according to the negotiation result of capacity of equipment.
206, described MRS provides voice interactive function by the RTP media channel of setting up for described user terminal A.
Described voice interactive function comprises: PA or PAC operation for example begin the playback notice or carry out collection of number or the like that the user dials in the playback notices.
207, after finishing voice interactive function, described MRS uses SIP INFO or HTTPGET message that the user data of collecting is submitted to described AS.
If AS asks interactive voice process next time in this calling procedure, then AS can utilize SIP INFO or HTTP GET message that interactive voice request is next time sent to MRS by piggybacking method (Piggybacking).Like this, after MRS is receiving new interactive voice request, will return above-mentioned steps 206, and connect with user terminal A by the RTP that has set up and carry out interactive voice process next time.
208, after described AS obtains sufficient user data, indication MRS can remove and user terminal A between the RTP media channel set up.
Like this, by interactive voice process once above-mentioned or repeatedly, after described AS obtains sufficient user data, will provide the IN service of being asked for described user terminal A.For example, prepayment intelligent is called out, after described AS obtains prepaid user's card number, password and called number by the interactive voice process between MRS and the user terminal, AS can be routed to the callee with this intelligent call according to the called number that is obtained, simultaneously behind end of conversation, will be according to described prepaid user's card number and password, the expense of caller and called users conversation in this calling procedure of deduction in the account of correspondence.
By the above-mentioned message flow of setting up voice interactive function as can be seen, in the method for the described realization voice interactive function of present embodiment, user terminal A will send to MRS by Invite message with the device capability information of self, and MRS will send to user terminal A by 180 Ringing message with the device capability information of self, need not mutual 200 OK message of MRS and user terminal and ACK message, thereby can realize the mutual of device capability information between user terminal A and the MRS earlier, thereby realize the foundation in advance of RTP media channel, realize the simplification of information interaction flow process.
In addition, in the described method of present embodiment, MRS also no longer sends 200 OK message after sending 180 Ringing message, and user terminal A is finished the foundation of RTP media channel with direct and MRS after receiving from the 180 Ringing message of MRS, and no longer waits for the 200OK message from MRS.Thereby, to set up in the process of RTP media channel in user terminal A and MRS, 200 OK message will can not appear, and like this, Virtual network operator can't charge to the shared Internet resources of this interactive voice process, thereby reduce the expense of service provider.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1, a kind of method that realizes interactive voice is characterized in that, described method comprises:
A, user terminal send to invite message to via application server AS provides the Media Resource Server of voice interactive function MRS, and carries the Session Description Protocol SDP information of user terminal in described invitation message;
B, described MRS return ring 180Ringing message to described user terminal via described AS, and the SDP information of carrying MRS in described 180Ringing message;
C, described user terminal and MRS set up the realtime transmission protocol RTP media channel according to both sides' interactive SDP information, and the RTP media channel that passes through to be set up carries out interactive voice.
2, method according to claim 1, it is characterized in that, described method further comprises after step C: D, finish interactive voice after, described MRS uses session initiation protocol informational message SIP INFO or HTML (Hypertext Markup Language) to obtain message HTTP GET the user data of collecting is submitted to described AS.
3, method according to claim 2 is characterized in that, described method further comprises: if ask interactive voice process next time, then AS utilizes described SIP INFO of step D or HTTPGET message that interactive voice request is next time sent to MRS.
4, according to claim 2 or 3 described methods, it is characterized in that described method further comprises after step D: E, described AS provide the IN service of being asked according to the user data from described MRS for described user terminal.
5, method according to claim 1, it is characterized in that, carrying user terminal SDP information in the described invitation message comprises: device capability information and corresponding port information, and the internet protocol address of RTP media channel, the SDP information of carrying MRS in the described 180Ringing message comprises: device capability information and corresponding port information, and the internet protocol address of RTP media channel.
6, method according to claim 5 is characterized in that, described device capability information comprises: the speech capability information of equipment and image energy force information.
According to each described method of claim 1 to 3, it is characterized in that 7, described interactive voice is for broadcasting notice or broadcasting notice and collect number.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610065193 CN100486282C (en) | 2006-03-27 | 2006-03-27 | Method for realizing interactive voice |
| PCT/CN2007/000188 WO2007109950A1 (en) | 2006-03-27 | 2007-01-18 | A method and system for realizing speech interaction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610065193 CN100486282C (en) | 2006-03-27 | 2006-03-27 | Method for realizing interactive voice |
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| CN1859506A CN1859506A (en) | 2006-11-08 |
| CN100486282C true CN100486282C (en) | 2009-05-06 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2009135375A1 (en) * | 2008-05-07 | 2009-11-12 | 中兴通讯股份有限公司 | Call establishing method for realizing the single dialog color ring service |
| CN105306420B (en) * | 2014-06-27 | 2019-08-30 | 中兴通讯股份有限公司 | Realize the method, apparatus played from Text To Speech cycle of business operations and server |
| CN115842808A (en) * | 2021-08-04 | 2023-03-24 | 中国移动通信有限公司研究院 | Call interaction method, device, network node and storage medium |
| CN114978485B (en) * | 2022-04-21 | 2023-09-08 | 中国电信股份有限公司 | Voice data transmission method, system, electronic equipment and storage medium |
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| CN100463404C (en) * | 2003-06-25 | 2009-02-18 | 中兴通讯股份有限公司 | Method for implementing telephone conference service by using media resource server |
| JP4335037B2 (en) * | 2004-03-08 | 2009-09-30 | 沖電気工業株式会社 | Interworking device |
| KR100746468B1 (en) * | 2004-08-19 | 2007-08-06 | 주식회사 케이티 | A session control method and Apparatus in IP based voice/videophone network |
| KR101043185B1 (en) * | 2004-09-16 | 2011-06-20 | 주식회사 케이티 | System for monitoring the voice call in Next Generation Network and method thereof |
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| WO2007109950A1 (en) | 2007-10-04 |
| CN1859506A (en) | 2006-11-08 |
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