test/repl1.sip
f8d46776
 SIP/2.0 200 Ok
5bc22c81
 Via: SIP/2.0/UDP foo.bar.com
 Via: SIP/2.0/UDP mobile55
f8d46776
 From: <sip:x@foo.bar>
 To: <sip:y@bar.foo>
 Call-ID:9437892232b@foo.bar
 CSeq: 143 INVITE
 Contact: <sip:x@foo.bar>