U 2010/06/27 14:27:43.555919 220.224.129.21:5060 -> 87.106.166.145:5060
SIP/2.0 100 Trying.
Via: SIP/2.0/UDP 87.106.166.145;branch=z9hG4bK1c3e.f8b2f5b2.0.
Via: SIP/2.0/UDP 66.234.138.73:5061;received=66.234.138.73;branch=z9hG4bKecd278d1fccf8faf018dd9a51f5e8baf;rport=5061.
From: <sip:18182557014@66.234.138.73>;tag=5ff01a7009da6e15074aaf974ef0116a.
To: <sip:37410738995@87.106.166.145>.
Call-ID: 9A0321D5-812611DF-84709643-3FD0180@66.234.138.68.
CSeq: 200 INVITE.
.