123

<--- SIP read from UDP:192.168.1.163:49552 --->
REGISTER sip:192.168.1.13 SIP/2.0
Via: SIP/2.0/UDP 192.168.1.163:5060;branch=z9hG4bK386d276d
From: <sip:951@192.168.1.13>;tag=0026994389e2000769a1c88a-eb78fa8f
To: <sip:951@192.168.1.13>
Call-ID: 00269943-89e20002-9810a926-d88f6b31@192.168.1.163
Max-Forwards: 70
Date: Wed, 16 Dec 2009 09:50:29 GMT
CSeq: 104 REGISTER
User-Agent: Cisco-CP7961G/8.5.3
Contact: <sip:951@192.168.1.163:5060;transport=udp>;+sip.instance="<urn:uuid:00000000-0000-0000-0000-0026994389e2>";+u.sip!model.ccm.cisco.com="30018"
Supported: (null),X-cisco-xsi-7.0.1
Content-Length: 0
Expires: 3600

<------------->
--- (13 headers 0 lines) ---
Sending to 192.168.1.163:49552 (NAT)

<--- Transmitting (NAT) to 192.168.1.163:49552 --->
SIP/2.0 401 Unauthorized
Via: SIP/2.0/UDP 192.168.1.163:5060;branch=z9hG4bK386d276d;received=192.168.1.163;rport=49552
From: <sip:951@192.168.1.13>;tag=0026994389e2000769a1c88a-eb78fa8f
To: <sip:951@192.168.1.13>;tag=as6b7fadc4
Call-ID: 00269943-89e20002-9810a926-d88f6b31@192.168.1.163
CSeq: 104 REGISTER
Server: FPBX-2.11.0(1.8.30.0)
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH, MESSAGE
Supported: replaces, timer
WWW-Authenticate: Digest algorithm=MD5, realm="asterisk", nonce="7fc89e86"
Content-Length: 0


<------------>
Scheduling destruction of SIP dialog '00269943-89e20002-9810a926-d88f6b31@192.168.1.163' in 32000 ms (Method: REGISTER)