Hello all, Well a few weeks my bill got cut off (long story) anywayz I paid it and they said they turned everything back on. Well ISDN still doesnt work. I have been on the phone with ATT Multiple times and majority of the people have no idea what it is. Well I Finally got the ISDN Department...and she asked for telephone number and all i have is my regular house number...so I gave her that and she said everything looked fine and transfered me to technical support but I think she needs the number to the ISDN line which I have no clue what it is. I never use it for voice...so am lost...is there anyway of finding out the number? Thanks I have A Cisco 804 modem..