U 2010/06/25 21:01:11.819001 220.224.129.21:5060 -> 87.106.166.145:5060 ACK sip:66.234.138.73:5061 SIP/2.0. Via: SIP/2.0/UDP 220.224.129.21:5060;branch=z9hG4bK9t00jc007on1ak0ti300sb10etf22.1. CSeq: 28900996 ACK. Call-ID: 7B556361-7FCA11DF-9C6B9643-3FD0180@66.234.138.68. From: ;tag=97.56.30.751064+1+27170028+55f292df. To: ;tag=a95529d8630fabcc3a6c37aaa2a7e68a. Max-Forwards: 69. Route: . Content-Length: 0. .