BT Micro Owner’s Manual 
106 
extensions is 123, but each extension may change its 
password. Extension Lock Passwords can be examined from 
the Programming Extension. 
The allowable range is a three digit code in the range 000 to 
999. 
Lock 
This feature allows you to lock your extension to prevent 
unauthorised users from making external calls.  Turn extension 
lock ON or OFF. 
Voicemail Password 
This is the password used to access individual extension 
voicemail boxes. By default, each extension is allocated the 
same Voicemail Password, (1111).  You can enter your own 
password, which can be up to eight digits long, as follows: 
The password can be up to 8 digits in length. 
Tone Protection 
When on a call, the call waiting tone of conference tone is 
audible to the user. Where these tones are not required, the 
feature should be disabled. 
Able to Intrude 
This allows the extension to intrude on other extensions on a 
call. When set On the Intrude option appears on the idle display 
of the featurephone. 
Protect from Intrusion 
Extension can be protected from being intruded on by other 
extensions. 
 
Personal Speed Dials 
You can dial your personal speed dials from the relevant option 
on your featurephone menu or by dialling the appropriate short 
code access from your POTS (analogue) phone. 
This page allows the user to enter up to 30 personal speed dial 
numbers for each extension. The personal speed dials are 
referred to as Index 1 – 30.