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