在分组交换网络中，用于视频会议系统的多媒体会话信令协议主要有H。323和SIP。

H. 323 and SIP are the main signaling protocols which control multi-media sessions in a multimedia conference system over the packet network.

youdao

在分组交换网络中，用于视频会议系统的多媒体会话信令协议主要有H。323和SIP。

H. 323 and SIP are the main signaling protocols which control multi-media sessions in a multimedia conference system over the packet network.

youdao