Mitel 1000 Owner's Manual page 76

From the Programming extension, press the PROGRAM key.
Press the Scroll Down key ( ) until "System Programming" is
displayed.
Select "System Programming".
Enter the System Programming Password and select "System".
Select "Timers".
Select "Notification Interval".
Enter the value between 60 and 900 seconds and press "Confirm".
Call Recording
Those extensions allowed to record calls are set via system
programming.
From the Programming extension, press the PROGRAM key.
Press the Scroll Down key ( ) until "System Programming" is
displayed.
Select "System Programming".
Enter the System Programming Password and select 'Extension'.
Scroll down and select 'Call Recording'.
Select those extensions that are to record calls.
Voicemail Capacity
You can change the message capacity of Mailboxes from the
default of 20 messages per Mailbox to a higher or lower amount
from 10 to 50 depending on demand.
From the Programming extension, press the PROGRAM key.
Press the Scroll Down key ( ) until "System Programming" is
displayed.
Select "System Programming".
Enter the System Programming Password and select 'System'.
Press the Scroll Down Key ( ) until 'Mail box capacity' is displayed.
Select 'VM capacity'
Enter the maximum number of messages to be stored per Mailbox.
Press the Speakerphone Key to finish programming.
Voice Mail capacity % used
This feature tells the Administrator when the Voice Module capacity
is approaching its limit. When the voice module storage reaches
88% of it's total capacity the system will display on the top line of
extension 20 the message 'ALARM MAIL ALMOST FULL'. This text
will remain on the display until the capacity falls below the 88%
mark again. This allows the administrator to remind users to delete
old or unwanted voice mails to free up some storage time.
The Administrator can also view the % capacity used by individual
voice boxes or the system box. To view this
Enter system programming and select "Extensions".
Scroll through the menu and select the "VM Capacity % Used"
option.
Select the "System VM box" to view the % used by the system box.
To view the % used by an extension voice box select "Extensions".
A list of extensions is shown with a solid diamond indicating an
extension with a voice box enabled.
Select the required extension to view, the top line of the display will
show the % of the extension's voice box that is used.
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