I've been using Zyxel Prestige P2000W with brekeke software without problem, but I can't get them to register with Axon. As they are expensive wireless phones I must get them to work.
I think the problem is with the authentication, but after searching the logs all seems to be working, only that the phones always get unauthorized.
Logs:
15:14:51 UDP Packet Received from 192.168.100.82:5060 <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
REGISTER sip:192.168.100.42:5060 SI