<-- SIP read from 81.192.196.76:5060:
REGISTER sip:82.66.4.198 SIP/2.0
Via: SIP/2.0/UDP 81.192.196.76;branch=z9hG4bKad09f0ffae40d5ef
From: "Alex" <sip:2732@82.66.4.198>;tag=eaaca99652f292b2
To: <sip:2732@82.66.4.198>
Contact: <sip:2732@81.192.196.76>
Supported: replaces
Call-ID: 755e433f36a821bf@192.168.1.2
CSeq: 3407 REGISTER
Expires: 60
User-Agent: Grandstream BT110 1.0.8.26
Max-Forwards: 70
Allow: INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE
Content-Length: 0


--- (13 headers 0 lines)---
Using latest REGISTER request as basis request
Sending to 81.192.196.76 : 5060 (non-NAT)
Transmitting (no NAT) to 81.192.196.76:5060:
SIP/2.0 100 Trying
Via: SIP/2.0/UDP 81.192.196.76;branch=z9hG4bKad09f0ffae40d5ef;received=81.192.196.76
From: "Alex" <sip:2732@82.66.4.198>;tag=eaaca99652f292b2
To: <sip:2732@82.66.4.198>
Call-ID: 755e433f36a821bf@192.168.1.2
CSeq: 3407 REGISTER
User-Agent: Asterisk PBX
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY
Contact: <sip:2732@82.66.4.198>
Content-Length: 0


---
Transmitting (no NAT) to 81.192.196.76:5060:
SIP/2.0 401 Unauthorized
Via: SIP/2.0/UDP 81.192.196.76;branch=z9hG4bKad09f0ffae40d5ef;received=81.192.196.76
From: "Alex" <sip:2732@82.66.4.198>;tag=eaaca99652f292b2
To: <sip:2732@82.66.4.198>;tag=as02feb66b
Call-ID: 755e433f36a821bf@192.168.1.2
CSeq: 3407 REGISTER
User-Agent: Asterisk PBX
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY
Contact: <sip:2732@82.66.4.198>
WWW-Authenticate: Digest algorithm=MD5, realm="82.66.4.198", nonce="790f9d07"
Content-Length: 0


---
Scheduling destruction of call '755e433f36a821bf@192.168.1.2' in 15000 ms
Asterisk*CLI>