| 摘要 |
<p>The invention provides a coding/decoding conversion control method, a media gateway and a system under soft-switch architecture, wherein, the method includes: the media gateway acquires a coding/decoding algorithm capability set supported by a first terminal; the media gateway acquires a coding/decoding algorithm used by a second terminal; the media gateway judges whether the coding/decoding algorithm used by the second terminal is in the coding/decoding algorithm capability set supported by the first terminal, and if the algorithm is in the coding/decoding algorithm capability set, a voice transcoder card (VTC) channel is not applied for, and transparent transmission is directly performed for the service of the first terminal and the second terminal; and if the algorithm is not in the coding/decoding algorithm capability set, the VTC channel is applied for, coding/decoding algorithm conversion is performed for the service of the first terminal and the second terminal by utilizing the VTC channel, and the converted service is transmitted. The solution of the present invention saves VTC channel resources, reduces the equipment cost and maintenance cost, and improves the communication efficiency and call completion rate between a calling party and a called party.</p> |
