REGISTER sip:127.0.0.1 SIP/2.0 Via: SIP/2.0/UDP 127.0.0.2:123;branch=z9hG4bKnashds7 Max-Forwards: 70 To: Bob From: Bob ;tag=456248 Call-ID: 843817637684230@998sdasdh09 CSeq: 1826 REGISTER Contact: Contact: Contact: Contact: Contact: Contact: Contact: Contact: Contact: Contact: Contact: Contact: Contact: Contact: Contact: Contact: Contact: Contact: Contact: Contact: Contact: Contact: Contact: Contact: Contact: Contact: Contact: Contact: Contact: Contact: Contact: Contact: Contact: Contact: Contact: Contact: Contact: Contact: Contact: Expires: 7200 Content-Length: 0 User-Agent: Cisco ATA v2.15 ata186 (020918a)