SIP/2.0 182 Queued, 1 caller ahead
Via: SIP/2.0/UDP kton.bell-tel.com
From: A. Bell <sip:a.g.bell@bell-tel.com>;tag=3
To: T. Watson <sip:watson@bell-tel.com> ;tag=37462311
Call-ID: 662606876@kton.bell-tel.com
CSeq: 1 INVITE
Content-Length: 0