Hi,. i just bought the grandstream handytone 488 but the has been no way to setup the 3cx pbx to make outgoing calls using the HT488 FXO port. has anyone been able to make this work? i say the zoom 5801 ATA adapter wich also has FXO port. has anyone been able to make the 5801 work with this PBX? because if so i will go ahead and buy it. if no. can anyone tell me which (not so expensive) voip gateway has been tested with 3cx and actually works. i have been able to configure the handy tone 488 to recieve calls into 3cx but i have a problem. when i tell the HT488 to go irectly into a a digital receptionist it is transfered and works correctly but when you choose an option (eg. 1) yo hear the system prompt "please hold while i transfer your call" and then the line is abruptly closed after that. the digital receptionist never gets to actually transfer the call to any extension. has anyone been able to make that work?