Hello all! I hope that I am about to ask a rather stupid question and you will be able to help, as I banged my head on this for a whole day without being able to overcome the problem. I have a Linksys PAP2 configured as a remote extension (201) which nicely registers with the PBX, the problem is that it registers with its own local internal IP address: [CM504001]: Ext.201: new contact is registered. Contact(s): [sip:firstname.lastname@example.org:5060/201] Clearly, when another extension attempts to call 201 the PBX cannot establish a route since there is no 192.168.1.2 to be reached... What I have tried: --enabled stun on the PAP2, tried several stun servers (even by IP, just in case -- but DNS is fine) -- made a 192.168.1.2 a DMZ host on the remote network, so that it could receive all traffic, not necessary but let's take away any concern about port forwarding -- searched, searched, searched, but obviously in the wrong places as I haven't been able to come up with anything. Does anyone know what else I could try to make this work? Thank you so much for your help!!