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Equipment requirements
User telephones
SL-1 telephones with Message Waiting key/lamp pair
500 telephones
2500 telephones
A Message Center operator can activate a Message Waiting Indication at any
of the following telephones:
— SL-1 telephones with MESSAGE WAITING key/lamp pair assigned
— 500 telephones (equipped with a Message Waiting lamp)
— 2500 telephones (equipped with a Message Waiting lamp)
— Standard SL-1, 500, or 2500 telephones with AMW
A Message Waiting Indication is provided by a MESSAGE WAITING key
lamp on the SL-1 telephone. The telephone can be a non-digit display or digit
display telephone.
The 500 telephone is similar to the standard 500 dial telephone, except that
the YR version has a neon lamp above and to the left of the dial. This light
comes on during ringing in any type of call, but the Message Center operator
can cause the neon lamp to flash in order to indicate that a message is waiting.
The 2500 telephone is similar to the standard 2500 keypad telephone, except
that the YQA version has a neon lamp above and to the left of the key pad.
This lamp functions in the same way as that of a 500 telephone.
Message Center
Description and operation
Page 17 of 48
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