We may have found other answers which could help you.
Success
Message
BT Synergy 3505 I can't hear them but they can hear me?
Bt Duet 700?
How To Straighten A Tangled Corded Telephone?
BT external connectors?
my phone crackles?
Base not working properly?
Radio cordless phone?
can my BTeasIcom 1000 corded telephone be repaired?
BT DIVERSE X10 ADD HANDSET PROBLEM?
BT Telephone extension?
moving phone supply point?
Additional handset/base?