<-- SIP read from x.x.x.3:5060: 
INFO sip:uivrxxxxxxxxxx@x.x.x.4:5060 SIP/2.0
Record-Route: <sip:x.x.x.3;ftag=545B4C0-215D;lr=on>
Via: SIP/2.0/UDP x.x.x.x;branch=z9hG4bKa81e.e85beb05.1
Via: SIP/2.0/UDP  x.x.x.5:5060;branch=z9hG4bKB18194C
From: <sip:2567050277@x.x.x.3>;tag=545B4C0-215D
To: <sip:xxxxxxxxxx@x.x.x.3>;tag=as52c82844
Date: Mon, 08 Jan 2001 10:43:18 GMT
Call-ID: E3EFBB6E-E48911D4-9FD4BE85-5D6B5599@x.x.x.5
User-Agent: Cisco-SIPGateway/IOS-12.x
Max-Forwards: 69
Route: <sip:x.x.x.3;ftag=545B4C0-215D;lr=on>
Timestamp: 978950598
CSeq: 102 INFO
Contact: <sip:2567050277@x.x.x.5:5060>
Remote-Party-ID: "ASTERIA SOLUTIO" <sip:x.x.x.5>;party=called;screen=no;privacy=off
Content-Length: 0


--- (16 headers 0 lines)---
Transmitting (NAT) to x.x.x.3:5060:
SIP/2.0 200 OK
Via: SIP/2.0/UDP x.x.x.3;branch=z9hG4bKa81e.e85beb05.1;received=x.x.x.3
Via: SIP/2.0/UDP  x.x.x.5:5060;branch=z9hG4bKB18194C
Record-Route: <sip:x.x.x.3;ftag=545B4C0-215D;lr=on>
From: <sip:2567050277@x.x.x.3>;tag=545B4C0-215D
To: <sip:xxxxxxxxxx@x.x.x.3>;tag=as52c82844
Call-ID: E3EFBB6E-E48911D4-9FD4BE85-5D6B5599@x.x.x.5
CSeq: 102 INFO
User-Agent: Asterisk PBX
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY
Contact: <sip:ivrxxxxxxxxxx@x.x.x.4>
Content-Length: 0