------------------------------------------------------------------------
ssend 562 bytes to udp/[212.117.200.148]:5060 at 15:51:04.479181:
   ------------------------------------------------------------------------
   REGISTER sip:41325108525@sip.backbone.ch SIP/2.0
   Via: SIP/2.0/UDP 192.168.1.1;rport;branch=z9hG4bK591Ke26KgpmKj
   Max-Forwards: 70
   From: <sip:41325108525@217.162.179.180>;tag=5KSj4p9UUrp3B
   To: <sip:41325108525@sip.backbone.ch>
   Call-ID: 43981235-f0f6-1229-93a2-004063d97c93
   CSeq: 75770995 REGISTER
   Contact: <sip:41325108525@217.162.179.180>
   Expires: 20
   User-Agent: FreeSWITCH(mod_sofia)
   Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, PRACK, MESSAGE, SUBSCRIBE, NOTIFY, REFER, UPDATE, REGISTER, INFO
   Supported: 100rel, precondition, path
   Content-Length: 0
   
   ------------------------------------------------------------------------