Media gateway is used to encode and decode voice steam and connect PSTN network to the IP network.

利用媒体网关进行语音流的编解码，确保PSTN网和IP网络间的互通性；

youdao

Media gateway is used to encode and decode voice steam and connect PSTN network to the IP network.

利用媒体网关进行语音流的编解码，确保PSTN网和IP网络间的互通性；

youdao