BT Quartet 1500 - Manual (Page 46)

You can operate your answering machine from any
modern Touchtone
® phone by calling your BT Studio 1500
and entering a 3-digit security PIN.
Using a PIN code prevents other people from accessing
your machine without permission.
Switch on your answering machine from
another phone
If you forget to switch on your answering machine, you
can do it from another phone.
1. Dial your phone number and let it ring. After 20 rings,
your answering machine will switch on.
Remote access
46