信令流程 signaling process
小区更新信令流程 Not only RRC
信令流量管理功能 Signaling Traffic Management Functions
信令流和消息内容 Signalling flows and message contents
详细信令流程 GPRS
信令流检测 Signaling-detection
信令电流 signaling current
信令业务流量控制 Signaling Traffic Control
交流信令AC信令 alternating current signalling AC signalling
直流信令DC信令 direct current signalling DC signalling
承载面承载媒体与信令流，信令面完成各种控制功能，应用面是媒体资源服务器。
Bearing plane bears media and signaling traffic, and signaling plane completes all control functions, and application plane means media or resource servers.
要让使用私有ip地址的用户通过SIP协议进行会话，就必须使SIP的信令流和媒体流穿越NAT，而其中的难点是媒体流的穿越。
Only when the control and media flow traverse NAT, can people use private IP address to make sessions with SIP protocol.
RTSP协议覆盖信令等领域，比如请求所需的电影编解码器的细节，通道数目，源服务器的IP地址和端口发送流。
RTSP protocol covers signalling areas such as requesting the details of the movie codecs required, number of tracks, source IP addresses and ports of the server sending the stream.
应用推荐