Hi, Can anyone help quite quickly at all please? Apologies if posted in wrong place. I'll try and keep this brief and to the point. Problem:- Remote Ext not working at home site Background:- Office SBS 2011 Server 3CX v12 Have 4 ext onsite, 1 remote smartphone and 1 remote ext at home. Office router is configured and works fine with the following ports;- SIP ALL 5060 5060 <int ip of office 3cx server> 3CX RTP UDP 9000 9049 <int ip of office 3cx server> 3389 ALL 3389 3389 <int ip of office 3cx server> 5000 ALL 5000 5000 <int ip of office 3cx server> 3CX Tunnel ALL 5090 5090 <int ip of office 3cs server> HOME Sky SR102 router - NO RULES SET - as not sure if it needs anything setting from this side? SNOM 320 phone IP 192.168.0.36 reserved using Sky's DHCP What have I done so far? I have gone to Snom phone and entered ADVANCED > UPDATE the configuration URL from the 3cx - http://ext IP of office:5000/provisioning/jsxxxx7s (have put x's randomly for security). Clicked save and waited for over an hour nothing. So factory reset the phone - now it won't let me enter the URL it is greyed out. Can someone please steer me in the correct direction - thank you.