[root@asterisk1 ~]# asterisk -r
Asterisk 1.2.13 svn rev 47264, Copyright (C) 1999 - 2006 Digium, Inc. and others.
Created by Mark Spencer <markster@digium.com>
Asterisk comes with ABSOLUTELY NO WARRANTY; type 'show warranty' for details.
This is free software, with components licensed under the GNU General Public
License version 2 and other licenses; you are welcome to redistribute it under
certain conditions. Type 'show license' for details.
=========================================================================
Connected to Asterisk 1.2.13 svn rev 47264 currently running on asterisk1 (pid = 3151)
Verbosity is at least 1
asterisk1*CLI> sip debug peer FWD
SIP Debugging Enabled for IP: 69.90.155.70:5060
REGISTER 13 headers, 0 lines
Reliably Transmitting (no NAT) to 69.90.155.70:5060:
REGISTER sip:fwd.pulver.com SIP/2.0
Via: SIP/2.0/UDP 124.254.123.181:5060;branch=z9hG4bK35e7b861;rport
From: <sip:782034@fwd.pulver.com>;tag=as34e2600e
To: <sip:782034@fwd.pulver.com>
Call-ID: 04c9a1226ede5eb0192bb99c71b75b41@127.0.0.1
CSeq: 108 REGISTER
User-Agent: Asterisk PBX
Max-Forwards: 70
Authorization: Digest username="782034", realm="fwd.pulver.com", algorithm=MD5, uri="sip:fwd.pulver.com", nonce="460648ea699d58d9731cac4e5f7e868cc0098091", response="98637342ac90b309228d22c75a5833c4", opaque=""
Expires: 120
Contact: <sip:782034@124.254.123.181>
Event: registration
Content-Length: 0


---
asterisk1*CLI>
<-- SIP read from 69.90.155.70:5060:
SIP/2.0 100 Trying
Via: SIP/2.0/UDP 124.254.123.181:5060;branch=z9hG4bK35e7b861;rport=5060
From: <sip:782034@fwd.pulver.com>;tag=as34e2600e
To: <sip:782034@fwd.pulver.com>
Call-ID: 04c9a1226ede5eb0192bb99c71b75b41@127.0.0.1
CSeq: 108 REGISTER
Content-Length: 0


--- (7 headers 0 lines) ---
asterisk1*CLI>
<-- SIP read from 69.90.155.70:5060:
SIP/2.0 200 OK
Via: SIP/2.0/UDP 124.254.123.181:5060;branch=z9hG4bK35e7b861;rport=5060
From: <sip:782034@fwd.pulver.com>;tag=as34e2600e
To: <sip:782034@fwd.pulver.com>;tag=cb2000b247d89723001a836145f3b053.5a30
Call-ID: 04c9a1226ede5eb0192bb99c71b75b41@127.0.0.1
CSeq: 108 REGISTER
Date: Sun, 25 Mar 2007 10:00:08 GMT
Contact: <sip:782034@iax.fwdnet.net>;q=1;expires=4294933688, <sip:782034@124.254.123.181>;q=0.1;expires=120
Content-Length: 0


--- (9 headers 0 lines) ---
Scheduling destruction of call '04c9a1226ede5eb0192bb99c71b75b41@127.0.0.1' in 32000 ms
Destroying call '04c9a1226ede5eb0192bb99c71b75b41@127.0.0.1'
asterisk1*CLI>