U 2010/06/25 21:16:06.294439 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=z9hG4bKr2brk110e8chrf4t8281sbm9nr451.1. CSeq: 920472906 ACK. Call-ID: 9218CCA3-7FCC11DF-9CBB9643-3FD0180@66.234.138.68. From: ;tag=97.56.30.751040+1+59860004+7384ebee. To: ;tag=2a0ab384adcef676090298048bc92643. Max-Forwards: 69. Route: . Content-Length: 0. .