Handset Icons; Telephone Operation - AT&T 2440 User Manual

Handset Icons

Icon Description
Line in Use
On steadily with no number next to it when a parallel set is
in use.
On steadily with one or more numbers next to it to show
which extensions are using the line. For example,
indicates that Handset 1 and Handset 2 are on outside calls.
Intercom
On steadily with the extension numbers currently on an
intercom call. For example, 02 indicates that the base and
Handset 2 are currently on an intercom call.
Battery
Cycles (low, medium, and high) when Handset battery is charging.
Flashes when battery is low.
Mute
M M
On steadily when the handset microphone is muted.
Hold
H H
On steadily when the line is on hold.
Handset Registration
R R
On steadily when a handset is either not registered, or is
searching for a base unit.

TELEPHONE OPERATION

AT THE HANDSET
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