AT&T MERLIN LEGEND System Reference Manual page 176

Features
Extension Status in Hotel
Configuration Operation
The meaning of the red LEDs associated with each group member is shown in
Table 2-7.
Table 2-7 LED Meanings for Supevisor Operation without Message
Status Active
LED
Extension
Meaning
Status Status
Off 0 The telephone is signed out from the group and the
member is unavailable to take calls.
The telephone is signed into the group and calls can
On 2
be sent to the member.
Slow 1 Used for CMS only—the telephone is in the after call
flashing work" state and the group member is not available to
take calls.
Note: The LEDs next to DSS buttons for all other types of extensions are always
off and have no meaning.
When Extension Status is in the Hotel configuration, the Extension Status feature
is assigned and removed from individual DLCs via system programming. (See
"Extension Status" in this chapter for details.) When the Extension Status is
assigned to a DLC position, the hotel Extension Status operation is always
active. The effect of pressing a DSS button while in the hotel Extension Status
operation is the same as that described for normal call-handling operation.
The red LED next to each DSS button for a room extension is used to monitor
room availability, and the DSS button is used to restrict the telephones when the
rooms are not occupied. The LEDs next to the rest of the extension number
types are always off and have no meaning while the position is not in the
message status operation.
Direct Station Selector 2-127