--- SIP read from 10.50.10.2:5060 --->
OPTIONS sip:metaswitch@10.50.10.171:5060;transport=udp SIP/2.0
Via: SIP/2.0/UDP 10.50.10.2:5060;rport;branch=z9hG4bK-7d8b88a896e78346ea88fced3b424952-metaswitch-1
Allow-Events: message-summary
Allow-Events: refer
Allow-Events: dialog
Allow-Events: line-seize
Max-Forwards: 70
Call-ID: 66559C8B@metaswitch
From: <sip:metaswitch@10.50.10.2:5060;transport=udp>;tag=metaswitch+1+0+bd640074
CSeq: 114153100 OPTIONS
Organization:
Supported: 100rel
Content-Length: 0
Contact: <sip:metaswitch@10.50.10.2:5060;transport=udp>
To: <sip:metaswitch@10.50.10.171>


<------------->
--- (15 headers 0 lines) ---
Looking for metaswitch in default (domain 10.50.10.171)

<--- Transmitting (no NAT) to 10.50.10.2:5060 --->
SIP/2.0 404 Not Found
Via: SIP/2.0/UDP 10.50.10.2:5060;rport;branch=z9hG4bK-7d8b88a896e78346ea88fced3b424952-metaswitch-1;received=10.50.10.2
From: <sip:metaswitch@10.50.10.2:5060;transport=udp>;tag=metaswitch+1+0+bd640074
To: <sip:metaswitch@10.50.10.171>;tag=as5ea6d95b
Call-ID: 66559C8B@metaswitch
CSeq: 114153100 OPTIONS
User-Agent: Asterisk PBX
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY
Supported: replaces
Accept: application/sdp
Content-Length: 0


<------------>
Scheduling destruction of SIP dialog '66559C8B@metaswitch' in 32000 ms (Method: OPTIONS)
Really destroying SIP dialog '2CC407A6@metaswitch' Method: OPTIONS

<--- SIP read from 10.50.10.2:5060 --->
INVITE sip:metaswitch0001@10.50.10.171:5060;transport=udp SIP/2.0
Via: SIP/2.0/UDP 10.50.10.2:5060;rport;branch=z9hG4bK-9d6e14d189d6f7d9d39f599cbd8cf200-metaswitch-1
Allow-Events: message-summary
Allow-Events: refer
Allow-Events: dialog
Allow-Events: line-seize
Max-Forwards: 70
Call-ID: 04F5E2E2@metaswitch
From: Norcast <sip:8055488000@10.50.10.2:5060;transport=udp>;tag=metaswitch+1+1a1706+4482c089;isup-oli=00
To: <sip:8055480013@10.50.10.171>
CSeq: 123831851 INVITE
Expires: 180
Organization:
Supported: 100rel
Content-Length: 164
Content-Type: application/sdp
Contact: Norcast <sip:8055488000@10.50.10.2:5060;transport=udp>;isup-oli=00

v=0
o=- 2527131752 2527131752 IN IP4 10.50.10.13
s=-
c=IN IP4 10.50.10.13
t=0 0
m=audio 32936 RTP/AVP 18 0 101
a=rtpmap:101 telephone-event/8000
a=ptime:20

<------------->
--- (17 headers 8 lines) ---
Sending to 10.50.10.2 : 5060 (NAT)
Using INVITE request as basis request - 04F5E2E2@metaswitch
Found peer 'line1'

<--- Reliably Transmitting (no NAT) to 10.50.10.2:5060 --->
SIP/2.0 407 Proxy Authentication Required
Via: SIP/2.0/UDP 10.50.10.2:5060;branch=z9hG4bK-9d6e14d189d6f7d9d39f599cbd8cf200-metaswitch-1;received=10.50.10.2;rport=5060
From: Norcast <sip:8055488000@10.50.10.2:5060;transport=udp>;tag=metaswitch+1+1a1706+4482c089;isup-oli=00
To: <sip:8055480013@10.50.10.171>;tag=as070a2015
Call-ID: 04F5E2E2@metaswitch
CSeq: 123831851 INVITE
User-Agent: Asterisk PBX
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY
Supported: replaces
Proxy-Authenticate: Digest algorithm=MD5, realm="asterisk", nonce="7b5197fd"
Content-Length: 0


<------------>
Scheduling destruction of SIP dialog '04F5E2E2@metaswitch' in 32000 ms (Method: INVITE)

<--- SIP read from 10.50.10.2:5060 --->
ACK sip:metaswitch0001@10.50.10.171:5060;transport=udp SIP/2.0
Via: SIP/2.0/UDP 10.50.10.2:5060;rport;branch=z9hG4bK-9d6e14d189d6f7d9d39f599cbd8cf200-metaswitch-1
Allow-Events: message-summary
Allow-Events: refer
Allow-Events: dialog
Allow-Events: line-seize
Max-Forwards: 70
Call-ID: 04F5E2E2@metaswitch
From: Norcast <sip:8055488000@10.50.10.2:5060;transport=udp>;tag=metaswitch+1+1a1706+4482c089;isup-oli=00
To: <sip:8055480013@10.50.10.171>;tag=as070a2015
CSeq: 123831851    ACK
Expires: 180
Organization:
Supported: 100rel
Content-Length: 0
Content-Type: application/sdp
Contact: Norcast <sip:8055488000@10.50.10.2:5060;transport=udp>;isup-oli=00


<------------->
--- (17 headers 0 lines) ---
[