Method for realizing protocol playback controlled by media gateway

A technology of media gateway control and media gateway, which is applied in the direction of interconnection devices, subscriber special services, electrical components, etc., can solve problems such as limited use scenarios, discontinuous playback, limited use scenarios, etc., to expand the use of occasions, Avoid discontinuous playback, wide application prospects

CN100461878CInactive Publication Date: 2009-02-11HUAWEI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2009-02-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

A method for implementing the playback of the media gateway control protocol, improving the signaling efficiency and the playback effect when it realizes the conference playback. Comprises: a soft switch down-transmits a signal to demand to play back to all terminals in the context, when the media gateway receives the signal, adds an exclusive terminal in the context that is needed to play back, and plays back to all the terminal in the context via the exclusive terminal. If the context demanded to play back is not a conference context, request a conference bridge resource after receiving the signal. When needed to stop playing back, the soft switch will down-transmit a null signal in which the terminal id represents all the terminals, and at this time the media gateway will stop playing back and delete the exclusive terminal used specially for playback. The soft switch may demand to play back to the object context, and the media gateway may play back to all the terminals in the context in matter of multicast, and / or multi-unicast, and / or signal tone sharing. When needed to stop playing back, down-transmit the null signal to the object context.
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Description

Technical field

[0001] The present invention relates to a control technology for a media gateway, in particular to a technology for realizing multi-party communication through a media gateway control protocol. Background technique

[0002] In the communications field, traditional voice services are usually provided by the Public Switched Telephone Network (PSTN). PSTN is a circuit-switched network, which brings many inconveniences to data users, such as high communication prices and slow Internet access , Long waiting time, low transmission quality, difficulty in adding new services, etc. With the development of communication technology and the rapid growth of data services, it is gradually becoming possible to carry voice and data services together on a single data network.

[0003] The Next Generation Network ("NGN") was proposed under this situation, and has been developed rapidly in recent years. NGN can carry the services in the PSTN and at the same time offload a large amou...

Examples

Embodiment Construction

[0047] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0048] The present invention expands the H.248.1 protocol and adds signals that take all Terminations in the Context as the operation object, including the playback signal and the stop playback signal. When the media gateway receives the playback signal, it adds a new Termination to the Context that needs to be played. Through the newly added Termination, the conference bridge is used for mixing to realize the playback of all the Terminations in the entire Context. . Fundamentally, this playback signal is specifically executed by a Termination, so it can be compatible with existing protocols. Because the signal is only sent once, the signaling efficiency is higher. And it is a Termination that plays all other Terminations in this Context, so the playback starts a...