SIP agreement, Chinese, is also out to the Internet, the U.S. reference, thank you.

Packet : 87361011sip3261cn.rar filelist
SIP 3261-cn\rfc3261.txt.pdf
SIP 3261-cn\SIP 3621-cn.doc
SIP 3261-cn\SipMSG.doc
SIP 3261-cn\~$P 3621-cn.doc
SIP 3261-cn

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