SIP/2.0 100 Trying
Via: SIP/2.0/UDP 192.168.1.153:6060;branch=z9hG4bK1057312524;received=192.168.1.153
From: "873" ;tag=399697897
To: "873"
Call-ID: 855535122@192.168.1.153
CSeq: 3866 REGISTER
User-Agent: MG3000-X100
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO
Supported: replaces
Content-Length: 0
1.151:6060", response="a4d0abab3fdd361ee346a93ea5fef18c", algorithm=MD5
Max-Forwards: 30
User-Agent: ET198
Expires: 60
Content-Length: 0
1