I have been trying to use the Avaya 4606 IP Telephone (with support for H323) with Asterisk. Has anyone else attempted this? Any success or definite failure? I know I must also use a gatekeeper with it, and I have tried both GNU Gatekeeper 2.0.8 and Open GK. However I have no success so far. The phone registers itself to the gatekeeper, and then unregisters. And this is repeated for as long as the phone is connected to the LAN. I know this is most probably related to the gatekeeper, but I would like to hear of any success or failure stories with the specific phone anyone else had.