I'm not able to use TAPS with shared lines. The system always
ask me to enter the complete telephone number (including area code). I tried to put a complete and different telephone number in the field "External phone mask" for each telephones with a shared line but I got the same question from TAPS. I did not find detailled instructions for using TAPS (User guide with all différents questions I can get when I'm using TAPS).