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10 General description
system provides all other telephone tones, such as dial tone or overflow
and reorder tones.
The alerting tone cadences cannot be changed from the telephone, but
can be altered for individual M2000 digital telephones by datafill. One
application can be a separate ringing tone for each of a number of
M2000 digital telephones in the same office area to facilitate
identification.
The following table lists tone frequency combinations.
Table 6 Meridian digital telephones
Tone
1
2
3
4
Note: A 500-Hz buzz signal is provided for incoming call notification
while the receiver is off-hook.
Volume control
One key with two positions controls the volume of incoming speech, the
handsfree unit, and the local alerting tone. Operating the Volume Up or
Volume Down section of the key incrementally increases or decreases
the volume for the tone or sound currently being received. To change
the volume of the ringing sound, the user must press Volume Up or
Volume Down during the interval when a burst of ringing is received.
The telephone set retains the volume settings for subsequent calls until
new volume adjustments are made.
Note: When an M2000 digital telephone is disconnected,
maintenance is performed on the loop, or a restart occurs, both the
speaker volume and alerting tone levels return to default values
(midpoint levels) after the telephone is reconnected.
Peripheral equipment
Digital line module
The telephone interfaces with the EDPC in the Digital Line Module
(DLM) of the Meridian SL-100 system using Time Compression
555-4001-110 Standard 09.03 July, 2002
Frequencies
640 Hz, 500 Hz
640 Hz, 500 Hz
320 Hz, 250 Hz
320 Hz, 250 Hz
Warble rate
10 Hz
2.5 Hz
10.0 Hz
2.5 Hz
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