rsinvite.msg

SIP（Session Initiation Protocol）是由IETF定义

INVITE sip:4081234567@172.19.175.184:5060;user=phone SIP/2.0
Via: SIP/2.0/UDP 172.19.175.178:5060
From: 8444<sip:8444@172.19.175.119:5060>
To: 7444<sip:7444@172.19.175.118:5060;user=phone>
Call-ID: #@172.19.175.118
CSeq: * INVITE
Subject: VovidaINVITE
Content-Length: 160

v=0
o=- 99513809 99513809 IN IP4 172.19.175.119
s=VOVIDA Session
c=IN IP4 172.19.175.119
t=962892393 0
m=audio 3456 RTP/AVP 0
a=rtpmap:0 PCMU/8000
a=ptime:20