i have a lg gdk 100 system that i have taken ,over.its a small inn and client want guests to dial from the rooms ,with just 0 and no autho codes and calls get recorded onto a T.M.S(have hooked up a buffer from man3000,but everytime i make a call from a room say 101,it shows a different extension, e.g 0 /191.what can be the problem???,and what other programming do i need to do to get it right ???