 <--- SIP read from 64.2.142.17:5060 --->
SIP/2.0 404 Not Found
Via: SIP/2.0/UDP xxx.xxx.xxx.xxx:5060;branch=z9hG4bK06409777;received=xxx.xxx.xxx.
xxx;rport=5060
From: "asterisk" <sip:asterisk@xxx.xxx.xxx.xxx>;tag=as79c68d62
To: <sip:outbound1.vitelity.net>;tag=as41b79357
Call-ID: 226e0fd016403c807fb1b71a6be8d9cd@xxx.xxx.xxx.xxx
CSeq: 102 OPTIONS
User-Agent: Asterisk PBX
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY
Accept: application/sdp
Content-Length: 0


sip show peers excerpt ->

Name/username              Host            Dyn Nat ACL Port     Status

vitel-outbound/myusername  64.2.142.17          N      5060     OK (40 ms)