3CX PBX in the Cloud
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google cloud platform
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Zero Admin
With the new Dashboard
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Bulletproof Security
With SSL certs and NGINX
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Install on $200 Appliance
Intel MiniPC architecture
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New, Intuitive Windows Client
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Scripting Interface to add your own
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Improved Integrated Web Conferencing
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什麽是SIP – 會話初始化協定?

SIP是會話初始化協定的縮寫,是一種用於建立、修改和終止VOIP電話通話的IP電話信號協定。SIP由IETF 制訂,並作爲RFC 3261頒佈。

SIP 描述建立電話通話所需要的通信。詳情請見SDP協定。

SIP已席捲VOIP市場,該協定與 HTTP協定相似,是一種基於文本的、非常開放和靈活的協定,已在很大範圍內取代了H323標準。

鏈結:
RFC 3261
什麽是SDP?
什麽是H323?