about 5 years ago Att in san francisco ca was offering phones with service?? They no longer do. model#21006GE3-a/IC; 3765a-2100GA? I CAN NOT TURN RINGER ON??? CORDLESS THANK YOU
push "ringer" buton on handset, then (on the keypad) push 1 - ON or 2 - OFF, then OK. ALSO - I have a downloaded manual that will work for the phone. wrolandhyattjr@sbcglobal.net
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Try fixfault.com to fix corded phones.