SIP与H.323的比较

SIP与H.323的比照VoIP通讯协议首要分为两大阵营：SIP与H.323。H.323和SIP方案之初都是作为多媒体通讯的使用层控制（信令）协议，如今一般用于IP电话。它们能实现的信令功能底层相同，也都使用RTP作为媒体传输的协议

(Comparison of SIP and H.323 VoIP communication protocols are mainly divided into two camps: SIP and H.323. Both H.323 and SIP schemes were originally used as user-level control (signaling) protocols for multimedia communications, and are now generally used in IP telephony. The signaling functions they can implement are the same at the bottom, and they both use RTP as the media transmission protocol.)

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