Quote Originally Posted by voipinit View Post
It could be from your ISP renewing your lease. It makes no difference if the public IP changed or is the same. The lease periodically gets renewed.
I am a little confused, if you are losing registration, you should not be able to make outbound calls as well as receive inbound. If it is registered and making outbound calls is OK and you are sure of your router port forwarding settings, I would first start by disabling (if set) any type of custom ring settings (distinctive ring, simul ring etc.)
Don't think this is an issue. My WAN IP has not changed for a long time. I do have dyndns but that's irrelevant here.

Yes, I can make outgoing calls but VoIPo has elected to forward incoming calls. Last time and this time, power cycling the ATA, then making a call or two incoming cures the problem. The first call incorrectly goes to VoIPo's voice mail on the 1st ring, not the fail-over number. The second incoming call attempt goes on to the ATA and all is well for a some days or weeks, as if some event at the servers causes this - like one out of a thousand re-registrations or heartbeats fail in some way.