cool advice mate!! All has been taken on board.

My Proof of concept is going to be done during my summer break, just want to get a C# app calling a VoIP phone on another internet connection.  Think I might buy a Tesco's internet phone for £20 to play with Smiley

along with at least another good idea POC in case VoIP falls though due to something.  What that is at the moment tho I have no idea.