Transmitting (no NAT) to 192.168.1.25:6240:
SIP/2.0 401 Unauthorized
Via: SIP/2.0/UDP 192.168.1.25:6240;branch=z9hG4bK-d87543-982197289-1--d87543-;rport;received=71.66.110.248
From: Rick Bonath<sip:500@phone.rickb.net>;tag=387f237d
To: Rick Bonath<sip:500@phone.rickb.net>;tag=as7d91f942
Call-ID: 8a045979d6272b46
CSeq: 1 REGISTER
User-Agent: Asterisk PBX
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY
Contact: <sip:500@69.60.114.235>
WWW-Authenticate: Digest realm="asterisk", nonce="360e7344"
Content-Length: 0