Nortel Networks P0857846 - Manual (Page 16)

Getting started with Norstar / 3
P0857846 Issue 02 Norstar-PLUS Modular ICS 2.0 System Coordinator Guide
features do not work. Do not use the main reception telephone for
programming because you may lose incoming calls.
Using Buttons
The two-line telephone you use for everyday calling is also used for
changes and maintenance. Examples of telephones with two-line
displays are shown in the illustration.
The next illustration numbers the buttons that are used for both day-to-
day communication and programming on the M7310.
M7310 M7324