keeps saying out of range?
write a program that prompts the user to input an integer?
How do I connect my own answering machine?
How do I clear a "memory full" message from answering machine?
bt 1100 twin need to replace broken 2nd handset?
flashing new message light when call has been answered?
How do I change the OGM on my Telstra 7100a phone?
require a users manual?
Bt 3500 cordless tel/answerphone?
Why is the green light flashing on the base unit?
base 1 again?
binatone shield 6015 twin phone set?