如何在Android应用程序中添加视频通话功能
问题描述：
我想在我的Android应用程序中添加视频通话功能，但无法弄清楚如何做到这一点。有人请告诉我怎么做。还有关于SIP协议的任何内容。
先谢谢
I want to add video call feature in my android application, but couldn't figure out how to do it. Will anyone please tell me how to do it. And anything about SIP protocol also.
Thanks in Advance