Memory Buttons; One-Line Display - Northern Telecom Compact ICS 4.0 Manual

208 / General System features
The M7100 telephone cannot have a
applicable, special instructions for the M7100 telephone are
included with each feature description.

Memory buttons

Memory buttons are the buttons with indicators on the M7208,
M7310, and M7324 telephones, and the dual buttons without
indicators on the M7310 telephone. There is a single memory
button, without an indicator, on the M7100 telephone.
Memory buttons can be used as answer, autodial, line, and
programmed feature buttons. Line, intercom and answer
buttons must have indicators.

One-line display

The M7100 and M7208 telephones have a one-line display.
Other Norstar telephones have a second line on the display
which shows the functions of the three buttons directly below
it.
Some display buttons, such as
shortcuts which are not available on a one-line display.
Other display buttons, such as
functions. For a one-line display telephone, use the following
buttons instead of these display buttons.
Compact ICS 4.0 System Coordinator Guide
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TRANSFER
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P0881596 Issue 02