sipmsgs

SIP（Session Initiation Protocol）是由IETF定义

1 797
INVITE sip:[e-mail] SIP/2.0
TO :
 sip:[e-mail] ;   tag    = 1a1b1f1H33n
From   : \"J Rosenberg \\\" <sip:[e-mail]>
  ;
  tag = 98asjd8
CaLl-Id
 : 0ha0isndaksdj@10.1.1.1
cseq: 8
  INVITE
Via  : SIP  /   2.0 
 /UDP 
    135.180.130.133
Subject :
NewFangledHeader:   newfangled value
 more newfangled value
Content-Type: application/sdp
v:  SIP  / 2.0  / TCP     12.3.4.5   ;
  branch  =   9ikj8  ,
 SIP  /    2.0   / UDP  1.2.3.4   ; hidden   
m:\"Quoted string \"\" <sip:[e-mail]> ; newparam = newvalue ;
  secondparam = secondvalue  ; q = 0.33
  (((nested comments) and (more)))   ,
 tel:[phone]

v=0
o=mhandley 29739 7272939 IN IP4 126.5.4.3
c=IN IP4 135.180.130.88
m=audio 492170 RTP/AVP 0 12
m=video 3227 RTP/AVP 31
a=rtpmap:31 LPC