While you wait for answers, we may have found some information which could help you.
Success
Message
How can I repair my phone?
How do i clear the TAM?
TAM FULL on Binatone 1420 Single, base holds old messages th?
Problem with handsets?
BT Studio 4500 cordless telephone?
Battery cover?
My bt freestyle phone don't ring or con?
BT 4600 phone problem?
How can I mend my BT4600 (1+1) phone?
Bt 4600 phone?
How can i get my handset to speak with the caller?
BT 4600 twin one handset bot ringing?