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