Sip read: 
SUBSCRIBE sip:100@192.168.1.5 SIP/2.0
Via: SIP/2.0/UDP 192.168.1.103;branch=z9hG4bKe49a4910E68C4177
From: "Gregory Boehnlein" <sip:100@192.168.1.5>;tag=4C7023CE-67E5116B
To: <sip:100@192.168.1.5>
CSeq: 1 SUBSCRIBE
Call-ID: 951ac44a-a639db4-11e60d79@192.168.1.103
Contact: <sip:100@192.168.1.103>
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, INFO, MESSAGE, SUBSCRIBE, NOTIFY, PRACK, UPDATE, REFER
Event: message-summary
User-Agent: PolycomSoundPointIP-SPIP_300-UA/1.3.4
Accept: application/simple-message-summary
Max-Forwards: 70
Expires: 3600
Content-Length: 0


14 headers, 0 lines
Using latest SUBSCRIBE request as basis request
Sending to 192.168.1.103 : 5060 (non-NAT)
Found peer '100'
Transmitting (no NAT):
SIP/2.0 407 Proxy Authentication Required
Via: SIP/2.0/UDP 192.168.1.103;branch=z9hG4bKe49a4910E68C4177
From: "Gregory Boehnlein" <sip:100@192.168.1.5>;tag=4C7023CE-67E5116B
To: <sip:100@192.168.1.5>;tag=as2416bffd
Call-ID: 951ac44a-a639db4-11e60d79@192.168.1.103
CSeq: 1 SUBSCRIBE
User-Agent: Asterisk PBX
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER
Contact: <sip:100@192.168.1.5>
Proxy-Authenticate: Digest realm="asterisk", nonce="2ec3b72c"
Content-Length: 0


 to 192.168.1.103:5060
Scheduling destruction of call '951ac44a-a639db4-11e60d79@192.168.1.103' in 15000 ms

Sip read: 
SUBSCRIBE sip:100@192.168.1.5 SIP/2.0
Via: SIP/2.0/UDP 192.168.1.103;branch=z9hG4bK9ce2cdcd8C6F3118
From: "Gregory Boehnlein" <sip:100@192.168.1.5>;tag=4C7023CE-67E5116B
To: <sip:100@192.168.1.5>
CSeq: 2 SUBSCRIBE
Call-ID: 951ac44a-a639db4-11e60d79@192.168.1.103
Contact: <sip:100@192.168.1.103>
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, INFO, MESSAGE, SUBSCRIBE, NOTIFY, PRACK, UPDATE, REFER
Event: message-summary
User-Agent: PolycomSoundPointIP-SPIP_300-UA/1.3.4
Accept: application/simple-message-summary
Proxy-Authorization: Digest username="100", realm="asterisk", nonce="2ec3b72c", uri="sip:100@192.168.1.5", response="d939c4a2
22281b24c0c96f4e8eba4d20", algorithm=MD5
Max-Forwards: 70
Expires: 3600
Content-Length: 0


15 headers, 0 lines
Using latest SUBSCRIBE request as basis request
Sending to 192.168.1.103 : 5060 (non-NAT)
Found peer '100'
Looking for 100 in default
Transmitting (no NAT):
SIP/2.0 200 OK
Via: SIP/2.0/UDP 192.168.1.103;branch=z9hG4bK9ce2cdcd8C6F3118
From: "Gregory Boehnlein" <sip:100@192.168.1.5>;tag=4C7023CE-67E5116B
To: <sip:100@192.168.1.5>;tag=as5be9d1a2
Call-ID: 951ac44a-a639db4-11e60d79@192.168.1.103
CSeq: 2 SUBSCRIBE
User-Agent: Asterisk PBX
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER
Contact: <sip:100@192.168.1.5>
Content-Length: 0


 to 192.168.1.103:5060
Transmitting (no NAT):
SIP/2.0 200 OK
Via: SIP/2.0/UDP 192.168.1.103;branch=z9hG4bK9ce2cdcd8C6F3118
From: "Gregory Boehnlein" <sip:100@192.168.1.5>;tag=4C7023CE-67E5116B
To: <sip:100@192.168.1.5>;tag=as5be9d1a2
Call-ID: 951ac44a-a639db4-11e60d79@192.168.1.103
CSeq: 2 SUBSCRIBE
User-Agent: Asterisk PBX
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER
Expires: 3600
Contact: <sip:100@192.168.1.5>;expires=3600
Content-Length: 0


 to 192.168.1.103:5060
Scheduling destruction of call '951ac44a-a639db4-11e60d79@192.168.1.103' in 3610000 ms
Reliably Transmitting:
NOTIFY sip:100@192.168.1.5 SIP/2.0
Via: SIP/2.0/UDP 192.168.1.5:5060;branch=z9hG4bK2186bb6c
From: <sip:100@192.168.1.5>;tag=as5be9d1a2
To: "Gregory Boehnlein" <sip:100@192.168.1.5>;tag=4C7023CE-67E5116B
Contact: <sip:100@192.168.1.5>
Call-ID: 951ac44a-a639db4-11e60d79@192.168.1.103
CSeq: 102 NOTIFY
User-Agent: Asterisk PBX
Event: dialog
Content-Type: application/dialog-info+xml
Content-Length: 201

<?xml version="1.0"?>
<dialog-info xmlns="urn:ietf:params:xml:ns:dialog-info" version="0" state="full" entity="sip:100@192.168.1.5">
<dialog id="100">
<state>confirmed</state>
</dialog>
</dialog-info>
 (no NAT) to 192.168.1.103:5060

Sip read: 
SIP/2.0 200 OK
Via: SIP/2.0/UDP 192.168.1.5:5060;branch=z9hG4bK2186bb6c
From: <sip:100@192.168.1.5>;tag=as5be9d1a2
To: "Gregory Boehnlein" <sip:100@192.168.1.5>;tag=4C7023CE-67E5116B
CSeq: 102 NOTIFY
Call-ID: 951ac44a-a639db4-11e60d79@192.168.1.103
Contact: <sip:100@192.168.1.103>
Event: dialog
User-Agent: PolycomSoundPointIP-SPIP_300-UA/1.3.4
Content-Length: 0


10 headers, 0 lines
Message is NOTIFY

Sip read: 
REGISTER sip:192.168.1.5 SIP/2.0
Via: SIP/2.0/UDP 192.168.1.103;branch=z9hG4bK4d52bf1fBAB6CC12
From: "Gregory Boehnlein" <sip:100@192.168.1.5>;tag=E3DC11B5-B30E6116
To: <sip:100@192.168.1.5>
CSeq: 1 REGISTER
Call-ID: adc27de1-f458de93-309ac73c@192.168.1.103
Contact: <sip:100@192.168.1.103>;methods="INVITE, ACK, BYE, CANCEL, OPTIONS, INFO, MESSAGE, SUBSCRIBE, NOTIFY, PRACK, UPDATE,
 REFER"
User-Agent: PolycomSoundPointIP-SPIP_300-UA/1.3.4
Max-Forwards: 70
Expires: 3600
Content-Length: 0

11 headers, 0 lines
Using latest request as basis request
Sending to 192.168.1.103 : 5060 (non-NAT)
Transmitting (no NAT):
SIP/2.0 100 Trying
Via: SIP/2.0/UDP 192.168.1.103;branch=z9hG4bK4d52bf1fBAB6CC12
From: "Gregory Boehnlein" <sip:100@192.168.1.5>;tag=E3DC11B5-B30E6116
To: <sip:100@192.168.1.5>;tag=as777e2203
Call-ID: adc27de1-f458de93-309ac73c@192.168.1.103
CSeq: 1 REGISTER
User-Agent: Asterisk PBX
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER
Contact: <sip:100@192.168.1.5>
Content-Length: 0

 to 192.168.1.103:5060
Transmitting (no NAT):
SIP/2.0 401 Unauthorized
Via: SIP/2.0/UDP 192.168.1.103;branch=z9hG4bK4d52bf1fBAB6CC12
From: "Gregory Boehnlein" <sip:100@192.168.1.5>;tag=E3DC11B5-B30E6116
To: <sip:100@192.168.1.5>;tag=as777e2203
Call-ID: adc27de1-f458de93-309ac73c@192.168.1.103
CSeq: 1 REGISTER
User-Agent: Asterisk PBX
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER
Contact: <sip:100@192.168.1.5>
WWW-Authenticate: Digest realm="asterisk", nonce="7d886998"
Content-Length: 0

 to 192.168.1.103:5060
Scheduling destruction of call 'adc27de1-f458de93-309ac73c@192.168.1.103' in 15000 ms

Sip read: 
REGISTER sip:192.168.1.5 SIP/2.0
Via: SIP/2.0/UDP 192.168.1.103;branch=z9hG4bKcbb8e4206C3C7
From: "Gregory Boehnlein" <sip:100@192.168.1.5>;tag=E3DC11B5-B30E6116
To: <sip:100@192.168.1.5>
CSeq: 2 REGISTER
Call-ID: adc27de1-f458de93-309ac73c@192.168.1.103
Contact: <sip:100@192.168.1.103>;methods="INVITE, ACK, BYE, CANCEL, OPTIONS, INFO, MESSAGE, SUBSCRIBE, NOTIFY, PRACK, UPDATE,
 REFER"
User-Agent: PolycomSoundPointIP-SPIP_300-UA/1.3.4
Authorization: Digest username="100", realm="asterisk", nonce="7d886998", uri="sip:192.168.1.5", response="11a94f915ab7b96506
58a649b2127e15", algorithm=MD5
Max-Forwards: 70
Expires: 3600
Content-Length: 0


12 headers, 0 lines
Using latest request as basis request
Sending to 192.168.1.103 : 5060 (non-NAT)
Transmitting (no NAT):
SIP/2.0 100 Trying
Via: SIP/2.0/UDP 192.168.1.103;branch=z9hG4bKcbb8e4206C3C7
From: "Gregory Boehnlein" <sip:100@192.168.1.5>;tag=E3DC11B5-B30E6116
To: <sip:100@192.168.1.5>;tag=as777e2203
Call-ID: adc27de1-f458de93-309ac73c@192.168.1.103
CSeq: 2 REGISTER
User-Agent: Asterisk PBX
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER
Contact: <sip:100@192.168.1.5>
Content-Length: 0


 to 192.168.1.103:5060
Transmitting (no NAT):
SIP/2.0 200 OK
Via: SIP/2.0/UDP 192.168.1.103;branch=z9hG4bKcbb8e4206C3C7
From: "Gregory Boehnlein" <sip:100@192.168.1.5>;tag=E3DC11B5-B30E6116
To: <sip:100@192.168.1.5>;tag=as777e2203
Call-ID: adc27de1-f458de93-309ac73c@192.168.1.103
CSeq: 2 REGISTER
User-Agent: Asterisk PBX
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER
Expires: 3600
Contact: <sip:100@192.168.1.103>;expires=3600
Date: Sat, 15 Jan 2005 22:17:59 GMT
Content-Length: 0


 to 192.168.1.103:5060
Scheduling destruction of call 'adc27de1-f458de93-309ac73c@192.168.1.103' in 15000 ms
Destroying call '3b71a8c975be0736562ede1d10c3078f@127.0.0.1'
11 headers, 0 lines
Reliably Transmitting:
OPTIONS sip:100@192.168.1.103 SIP/2.0
Via: SIP/2.0/UDP 192.168.1.5:5060;branch=z9hG4bK5b5986bc
From: "2169203021" <sip:2169203021@192.168.1.5>;tag=as4a563e6a
To: <sip:100@192.168.1.103>
Contact: <sip:2169203021@192.168.1.5>
Call-ID: 7151c0ef1995c5916718d66d4d3b9291@192.168.1.5
CSeq: 102 OPTIONS
User-Agent: Asterisk PBX
Date: Sat, 15 Jan 2005 22:18:07 GMT
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER
Content-Length: 0

 (no NAT) to 192.168.1.103:5060

Sip read: 
SIP/2.0 200 OK
Via: SIP/2.0/UDP 192.168.1.5:5060;branch=z9hG4bK5b5986bc
From: "2169203021" <sip:2169203021@192.168.1.5>;tag=as4a563e6a
To: <sip:100@192.168.1.103>;tag=1174CBC4-14B43D49
CSeq: 102 OPTIONS
Call-ID: 7151c0ef1995c5916718d66d4d3b9291@192.168.1.5
Contact: <sip:100@192.168.1.103>
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, INFO, MESSAGE, SUBSCRIBE, NOTIFY, PRACK, UPDATE, REFER
User-Agent: PolycomSoundPointIP-SPIP_300-UA/1.3.4
Content-Length: 0


10 headers, 0 lines
Jan 15 17:18:07 NOTICE[4710]: chan_sip.c:6620 handle_response: Peer '100' is now REACHABLE!
Destroying call '7151c0ef1995c5916718d66d4d3b9291@192.168.1.5'
11 headers, 0 lines
Reliably Transmitting:
OPTIONS sip:100@192.168.1.103 SIP/2.0
Via: SIP/2.0/UDP 192.168.1.5:5060;branch=z9hG4bK66303b34
From: "2169203021" <sip:2169203021@192.168.1.5>;tag=as31be96be
To: <sip:100@192.168.1.103>
Contact: <sip:2169203021@192.168.1.5>
Call-ID: 31c6d80a7a9b61515c428e365e01baa7@192.168.1.5
CSeq: 102 OPTIONS
User-Agent: Asterisk PBX
Date: Sat, 15 Jan 2005 22:19:07 GMT
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER
Content-Length: 0

 (no NAT) to 192.168.1.103:5060
asterisk*CLI> 

Sip read: 
SIP/2.0 200 OK
Via: SIP/2.0/UDP 192.168.1.5:5060;branch=z9hG4bK66303b34
From: "2169203021" <sip:2169203021@192.168.1.5>;tag=as31be96be
To: <sip:100@192.168.1.103>;tag=8E91749D-70BCA15E
CSeq: 102 OPTIONS
Call-ID: 31c6d80a7a9b61515c428e365e01baa7@192.168.1.5
Contact: <sip:100@192.168.1.103>
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, INFO, MESSAGE, SUBSCRIBE, NOTIFY, PRACK, UPDATE, REFER
User-Agent: PolycomSoundPointIP-SPIP_300-UA/1.3.4
Content-Length: 0