<--- SIP read from 192.168.11.120:53792 --->
INVITE sip:214059@192.168.11.124:5060 SIP/2.0
Via: SIP/2.0/UDP  192.168.11.120:5060
From: <sip:3315436@192.168.11.120>;tag=42AC6A7E-871
To: <sip:214059@192.168.11.124>
Date: Tue, 03 Jul 2007 10:46:01 GMT
Call-ID: 6CA964D5-288911DC-80AD8E47-D3C44B79@192.168.11.120
Supported: timer,100rel
Min-SE:  1800
Cisco-Guid: 1822960620-680071644-2158661191-3552856953
User-Agent: Cisco-SIPGateway/IOS-12.x
Allow: INVITE, OPTIONS, BYE, CANCEL, ACK, PRACK, COMET, REFER, SUBSCRIBE, NOTIFY, INFO
CSeq: 101 INVITE
Max-Forwards: 6
Remote-Party-ID: <sip:3315436@192.168.11.120>;party=calling;screen=yes;privacy=off
Timestamp: 1183459561
Contact: <sip:3315436@192.168.11.120:5060>
Expires: 180
Allow-Events: telephone-event
Content-Type: application/sdp
Content-Length: 221

v=0
o=CiscoSystemsSIP-GW-UserAgent 8029 8425 IN IP4 192.168.11.120
s=SIP Call
c=IN IP4 192.168.11.120
t=0 0
m=audio 17344 RTP/AVP 0 19
c=IN IP4 192.168.11.120
a=rtpmap:0 PCMU/8000
a=rtpmap:19 CN/8000
a=ptime:20

<------------->
--- (20 headers 10 lines) ---
Sending to 192.168.11.120 : 5060 (no NAT)
Using INVITE request as basis request - 6CA964D5-288911DC-80AD8E47-D3C44B79@192.168.11.120
Found no matching peer or user for '192.168.11.120:53792'
[Jul  3 14:46:09] NOTICE[4672]: chan_sip.c:13362 handle_request_invite: Failed to authenticate user <sip:3315436@192.168.11.120>;tag=42AC6A7E-871

<--- Reliably Transmitting (no NAT) to 192.168.11.120:5060 --->
SIP/2.0 403 Forbidden
Via: SIP/2.0/UDP  192.168.11.120:5060;received=192.168.11.120
From: <sip:3315436@192.168.11.120>;tag=42AC6A7E-871
To: <sip:214059@192.168.11.124>;tag=as316b3219
Call-ID: 6CA964D5-288911DC-80AD8E47-D3C44B79@192.168.11.120
CSeq: 101 INVITE
User-Agent: Asterisk PBX
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY
Supported: replaces
Content-Length: 0


<------------>
Scheduling destruction of SIP dialog '6CA964D5-288911DC-80AD8E47-D3C44B79@192.168.11.120' in 32000 ms (Method: INVITE)

<--- SIP read from 192.168.11.120:53792 --->
ACK sip:214059@192.168.11.124:5060 SIP/2.0
Via: SIP/2.0/UDP  192.168.11.120:5060
From: <sip:3315436@192.168.11.120>;tag=42AC6A7E-871
To: <sip:214059@192.168.11.124>;tag=as316b3219
Date: Tue, 03 Jul 2007 10:46:01 GMT
Call-ID: 6CA964D5-288911DC-80AD8E47-D3C44B79@192.168.11.120
Max-Forwards: 6
Content-Length: 0
CSeq: 101 ACK


<------------->
--- (9 headers 0 lines) ---
Really destroying SIP dialog '6CA964D5-288911DC-80AD8E47-D3C44B79@192.168.11.120' Method: ACK
Really destroying SIP dialog '512599129@192.168.11.123' Method: REGISTER