Frame 5 (370 bytes on wire, 370 bytes captured)
Internet Protocol, Src Addr: 10.250.250.201 (10.250.250.201), Dst Addr: 10.250.250.201 (10.250.250.201)
User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5070 (5070)
Session Initiation Protocol
    Request line: ACK sip:5550101@vocal2.engdomain.com SIP/2.0
        Method: ACK
    Message Header
        Via: SIP/2.0/UDP 10.250.250.201:5060;branch=251f33139bd95c4aa1511b886ff9126e.1
        To: <sip:5550101@vocal2.engdomain.com>;tag=45f97171
        From: <sip:1017@vocal2.engdomain.com>;tag=2c18069
        Call-ID: call-1042670570-91@10.250.250.101
        CSeq: 1 ACK
        Max-Forwards: 70
        Content-Length: 0