<-- SIP read from 45.210.5.64:5060:
INFO sip:4180@45.210.4.21 SIP/2.0
Call-ID: 56f4247d-45c5c-2dd21904@asterisk.sip.ilabs.interop.net
From: BVP8761-B<sip:4181@asterisk.sip.ilabs.interop.net;user=phone>;tag=23dd4-d7cd
To: <sip:4180@asterisk.sip.ilabs.interop.net;user=phone>;tag=as5bba2bd0
CSeq: 376 INFO
Via: SIP/2.0/UDP 45.210.5.64:5060
Contact: BVP8761-B<sip:4181@45.210.5.64:5060;user=phone>
Max-Forwards: 70
User-Agent: Leadtek BVP8761 App/1.5.5 VFast/1.5.4
Supported: timer
Content-Type: application/media_control+xml
Content-Length: 195

<?xml version="1.0" encoding="utf-8" ?>
 <media_control>
  <vc_primitive>
   <to_encoder>
    <picture_fast_update>
    </picture_fast_update>
   </to_encoder>
  </vc_primitive>
 </media_control>
--- (12 headers 9 lines)---