i have the latest 3cx v12 sp5 installed on server and plugged a voip box to my phone and the server running windows 2008 r2 sp1. i also installed 3cx phone for windows. on the management console, at extension node i clicked send welcome email button but the welcome email never arrived althogh i configured my smtp. i configured the digital receptionist with the HOL and welcome sound file and menu, but no incoming calls are being picked up by the system and sound file played. why?