NEC Electra Elite 48/192 Features And Specifications Manual page 526

Electa Elite
Features and Specifications Manual
Use Memory Block 4-17 (Station to Class of Service Feature
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Assignment) to specify a Class of Service for each Table (1 and 2) to
enable or disable features per station.
General:
Timed Alarm must be set in five-minute increments for SLTs using a
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24-hour format. For example: 12:10, 12:15,...23:55.
A Timed Alarm rings for four minutes when not answered.
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When Timed Alarm is answered, the user hears Music On Hold.
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SLT Timed Alarm must be set daily.
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Issue 6
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