Quote Originally Posted by stevech View Post
refer to LNJ-408013

problem in this and the prior ticket seems to be that the ATA isn't able to re-register after expiration of a power-up registration. Outbound calls work, but some days/weeks later, incoming go to fail over, outgoing still work, and VoIPo's servers don't alert the customer nor VoIPo of the fault.
That's my supposition, considering the last two tickets.
The devices re-register every few minutes, but sometimes if an ISP renews the IP or something along those lines the router will "close" the NAT pinhole basically preventing two way communication where our packets don't get to it.

That's why sometimes a reboot is needed.

Not ideal, but it's just the nature of NAT since if we can't get through to the device, we can't make it do anything.

With most routers port forwarding fixes this since all traffic on those ports get right through, but it depends a lot on the router.