Hello All, Been trying to fix this problem for the better part of the day. Setting up everything else was easy. My android phone will register and be ready to use when I'm on Wi-Fi (The Local Network). However, when I disable WiFi, it says "Disconnected - Registering". After Sometime it times out. I've setup the following port fowarding (Note: I'm using port 5080 for SIP rather than 5060) TCP & UDP: 5080 UDP: 9000-9255 UDP: 5090 TCP: 5000 (Abyss Port, IIS is used for Remote login) TCP: 5001 (Abyss Port) TCP: 5228-5230 (PUSH Setup) The firewall and DNS checkers both report that everything is good. I've activated PUSH and setup the appropriate Google information. I've set my otuside hosted DNS to: pbx.XXXX.com and added an (A) name in my local DNS for: pbx.XXXX.local I'm at a lose and I'm sure it's probably something I'm overlooking. I've even disabled the firewall on the router and the server for testing, and it still has the issue. Any help would be greatly appreciated.