Just to let you know i have now spent another day and still yet to find a solution.
I am on my 4th 7940 and i have also tried to register with my asterisk pbx and still no joy.
As pythonpoole suggests it is a password error i spent all day checking. I have checked and rechecked all day long but still nothing. However if i put in the wrong password i get the same 401 error but the sip trace is different.
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19:12:56 UDP Packet Received from 192.168.1.85:5060 <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
REGISTER sip:192.168.1.11 SIP/2.0
Via: SIP/2.0/UDP 192.168.1.85:5060;branch=z9hG4bK43bb5d79
From: sip:121@192.168.1.11
To: sip:121@192.168.1.11
Call-ID: 0006d737-cdbc0003-768131c7-7399f99d@192.168.1.85
CSeq: 102 REGISTER
User-Agent: CSCO/6
Contact: <sip:121@192.168.1.85:5060>
Authorization: Digest username="UNPROVISIONED",realm="axon@voip_server",uri="sip:192.168.1.11",response="9958d961632c1d0775596eef71ff7c49",nonce="v45812qaq39952w",opaque="",algorithm=MD5
Content-Length: 0
Expires: 3600
----------------------------------------------------------------
19:12:56 UDP Packet Sent to 192.168.1.85:5060 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
SIP/2.0 401 Unauthorized
Via: SIP/2.0/UDP 192.168.1.85:5060;branch=z9hG4bK43bb5d79
To: sip:121@192.168.1.11
From: sip:121@192.168.1.11
Call-ID: 0006d737-cdbc0003-768131c7-7399f99d@192.168.1.85
CSeq: 102 REGISTER
User-Agent: NCH Swift Sound Axon Virtual PBX 2.00
WWW-Authenticate: Digest realm="axon@voip_server",nonce="v45812qaq39952w",opaque="",stale=FALSE,algorithm=MD5
Content-Length: 0
What i noticed is that it has not changed the port number, so i assume that previously it has been connecting but something is stopping it.
Any help guys would amazing.
Alex