While you wait for answers, we may have found some information which could help you.
Success
Message
Bt 4600 phone?
BT 4600 phone problem?
TAM FULL on Binatone 1420 Single, base holds old messages th?
My bt freestyle phone don't ring or con?
How do i clear the TAM?
Battery cover?
How can I mend my BT4600 (1+1) phone?
Problem with handsets?
How can I mend my Telstra 12250 cordless phone?
How can i get my handset to speak with the caller?
BT 4600 twin one handset bot ringing?
How can I repair my phone?