Hello, First I would like to say I really like this software. It is easy to understand and quite slick.. Question: 1. I have 3CX on a colocated server on the net. My Granstream GXP-2000 phone are in several different location behind nats. So far I have not been able to get past. 16:42:49.587 Registrar::resolveAddress: Registrar can not resolve <sip:firstname.lastname@example.org:5060> 16:42:49.587 Registrar::resolveAddress: Registrar can not resolve <sip:email@example.com:5060> But the IP's for the Phones don't match to there location.. Is there a setting or something on these phones that need to be set to have 3CX route them to the correct IP? 2. Is it possible to have multiple phone behind a single IP to connect to a outside 3CX server? Thank you for any input. And great work with this software, It truly is about time windows gets a solution.