--- (12 headers 0 lines) ---
Using latest REGISTER request as basis request
Sending to 10.0.0.1 : 5060 (NAT)
Transmitting (NAT) to 85.130.134.250:5060:
SIP/2.0 100 Trying
Via: SIP/2.0/UDP 10.0.0.1:5060;branch=z9hG4bK-399d930;received=85.130.134.250
From: <sip:240@62.219.xxx.xxx>;tag=f0327a3e3af3d318o0
To: <sip:240@62.219.xxx.xxx>
Call-ID: a3988f56-1a5300e0@10.0.0.1
CSeq: 2 REGISTER
User-Agent: Asterisk PBX
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY
Contact: <sip:240@62.219.xxx.xxx>
Content-Length: 0


---
Transmitting (NAT) to 85.130.134.250:5060:
SIP/2.0 401 Unauthorized
Via: SIP/2.0/UDP 10.0.0.1:5060;branch=z9hG4bK-399d930;received=85.130.134.250
From: <sip:240@62.219.xxx.xxx>;tag=f0327a3e3af3d318o0
To: <sip:240@62.219.xxx.xxx>;tag=as0d3c985f
Call-ID: a3988f56-1a5300e0@10.0.0.1
CSeq: 2 REGISTER
User-Agent: Asterisk PBX
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY
WWW-Authenticate: Digest algorithm=MD5, realm="asterisk", nonce="2270b874"
Content-Length: 0