• 1. voice encode and decode: 压缩编解码
• 2. Voice encode and decode module: 语音编解码

• 1.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；
  dict.yoduao.com

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