AT&T MERLIN LEGEND Release 4.0 Feature Reference page 517

Feature Reference
Feature Interactions
Auto Dial
Conference
Direct Station
Selector
Do Not Disturb
Group Calling
Messaging
Multi-Function
Module
Privacy
Transfer
A Signal button and an Auto Dial button cannot be programmed for the
same extension. If a user tries to program one of these buttons while the
other is already programmed, the feature being programmed erases the
previously programmed feature.
Signal and Notify can be used during a conference call.
If a user presses a Signal button programmed with the system
operator's extension while making a call to the system operator, the LED
next to the operator's DSS (Direct Station Selector) button changes from
flashing to steady while the Signal button is held down.
Signal cannot be used when the destination telephone user activates
Do Not Disturb.
A Signal button cannot be programmed for a calling group.
If a display telephone user presses a Signal button only to send an
audible signal with a posted message to a telephone, the posted
message is not shown on the display at the destination. However, if a
display telephone user selects an SA or ICOM button, lifts the handset,
and then uses the Signal button to dial the extension, the posted
message is shown at the destination telephone.
When set for supplemental alert adapter operation, a Multi-Function
Module (MFM) can receive a signal but cannot send one. An MFM
cannot receive a signal when set for tip/ring operation.
Users can program and use the Signal and Notify features to signal
co-workers who have activated Privacy.
A Signal button can be used to dial the extension during a transfer after
the Transfer button and either an SA or ICOM button is pressed. Signal
buttons cannot be used to initiate one-touch Transfer.
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Signal/Notify