While you wait for answers, we may have found some information which could help you.
Success
Message
Telstra cordless 6100a Won't make calls?
Telstra v850a handset reads line in use. Can't get a line?
How can I add a handset to telstra v580a?
My cordless phone says Base 1 (Telstra 7100) ?
telstra 8950a?
Telstra 7100A, "Not Registered"?
How can I mend my Telstra 12250 cordless phone?
telstra 6100a with 4 handsets?
Warrenty repair?
My caller id is not working?
How to fix Telstra 8950 answering machine?
call waiting feature on telstra v850a cordless telephone?