recv 512 bytes from udp/[66.18.51.188]:5060 at 15:11:34.980010:
   ------------------------------------------------------------------------
   OPTIONS sip:8032@10.59.64.104:2120;transport=udp SIP/2.0
   Via: SIP/2.0/UDP 66.18.51.188:5060;branch=z9hG4bK22c5923c;rport
   From: "Unknown" <sip:Unknown@66.18.51.188>;tag=as0622758f
   To: <sip:8032@10.59.64.104:2120;transport=udp>
   Contact: <sip:Unknown@66.18.51.188>
   Call-ID: 3a5c1c211aae4a441655f7056c90207d@66.18.51.188
   CSeq: 102 OPTIONS
   User-Agent: Asterisk PBX
   Max-Forwards: 70
   Date: Mon, 30 Jul 2007 15:13:04 GMT
   Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY
   Content-Length: 0

   ------------------------------------------------------------------------
send 545 bytes to udp/[66.18.51.188]:5060 at 15:11:34.984283:
   ------------------------------------------------------------------------
   SIP/2.0 200 OK
   Via: SIP/2.0/UDP 66.18.51.188:5060;branch=z9hG4bK22c5923c;rport=5060
   From: "Unknown" <sip:Unknown@66.18.51.188>;tag=as0622758f
   To: <sip:8032@10.59.64.104:2120;transport=udp>;tag=QZSSy9Svy4gcc
   Call-ID: 3a5c1c211aae4a441655f7056c90207d@66.18.51.188
   CSeq: 102 OPTIONS
   Contact: <sip:8032@10.59.64.104:2120>
   User-Agent: Telepathy-SofiaSIP/0.3.25 sofia-sip/1.12.6
   Accept: application/sdp
   Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, PRACK, MESSAGE, SUBSCRIBE, NOTIFY, REFER, UPDATE
   Supported: timer, 100rel
   Content-Length: 0

   ------------------------------------------------------------------------
telepathy-sofiasip[8308]: GLIB DEBUG default - sip_connection_sofia_callback: enter: NUA at 0x30238 (conn 0x2e800), event #10 'nua_i_options', 200 'OK'
telepathy-sofiasip[8308]: GLIB DEBUG default - sip_connection_sofia_callback: Connection refcount is 1
telepathy-sofiasip[8308]: GLIB MESSAGE default - sip-connection: unknown event #10 'nua_i_options', status 200 'OK'  (nh=0x393c0)
telepathy-sofiasip[8308]: GLIB DEBUG default - sip_connection_sofia_callback: exit