Method for implementing H.248 information compatibility

Abstract

The invention relates to a method for realizing H.248 message compatibility, which can effectively resolve the compatibility problem between MGW and MGC of H.248 protocol. The inventive method comprises that a media network gate controller successfully registers on a media network gate to send a command for setting control parameters to the media network gate, the control parameters are set as actively jumping or inactively jumping function pack, the media network gate feedbacks a setting answer to the media network gate controller, if the media network gate supports the active jumping function, the media network gate feedbacks a success setting message, or else, feedbacks an error answer, the media network gate executes setting command, according to the control parameters to judge if jumps over unknown function pack, and if the control parameters are set as actively jumping, the media network gate actively jumps over unknown function pack. The invention can confirm normal communication without affecting system stability, when MGC and MGW are not consistent.

Description

technical field [0001] The invention relates to a method for realizing message compatibility, in particular to a method for realizing H.248 message compatibility on MGC (media gateway controller) and MGW (media gateway) in NGN (next generation network) system in the communication field. Background technique [0002] The International Organization for Standardization ITU-T (International Telecommunication Union - Telecommunication Standardization Department, Telecommunication Standardization Sector of ITU, referred to as ITU-T), is responsible for the formulation and revision of the relevant telecommunication standards of the Telecommunication Union. In the H.248 protocol formulated by it, a set of systems and methods for the MGC to control the MGW is defined. The H.248 protocol continuously expands the functions of the protocol by defining function packages, and different application scenarios require different function packages. At present, the H.248 protocol is widely app...

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Problems solved by technology

[0005] Although the above two methods solve the intercommunication problem, they also have the following two disadvantages: First, it is assumed that the MGC and MGW can support the same negotiation capability at the same time. The reality is that it is difficult to ensure that the MGW and MGC have the same negotiation capabilities in a short period of time; second, the methods to circumvent the compatibility of these two methods are finally implemented on the MGC. When the MGC is used as a call control protocol , it may be connected with different protocols, and the internal mechanism is also more complex than MGW, and the H.248 protocol has many function packages, so the implementation of compatibility will lead to more complex internal implementation of MGC, affecting the overall stability of core network equipment

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