We may have found other answers which could help you.
Success
Message
How can I mend my BT4600 (1+1) phone?
How can i get my handset to speak with the caller?
TAM FULL on Binatone 1420 Single, base holds old messages th?
BT 4600 twin one handset bot ringing?
Mute?
Fix blank screen in cordless hand set CLP99483?
Battery cover?
How can I repair my phone?
Bt 4600 phone?
Problem with handsets?
BT Studio 4500 cordless telephone?
How do i clear the TAM?