Black Box MD1276A, User Manual

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Page 94
ATM Monitor
Your modem has a built-in speaker enabling you to monitor the progress of calls. You can listen
for dial tones, busy signals, a successful connection to another modem, or someone answering
your call.
The M command controls the operation of the speaker.
+
Some modems also provide volume control via the L command.
Options
ATM0 Speaker is always off
ATM1 n Speaker is on whenever the modem is dialling or answering a call. When a
connection is established, the speaker is switched off
ATM2 Speaker is always on
ATM3 Speaker is off whenever the modem is dialling or once a connection is
established
ATM4 Speaker is on whenever the modem is dialling or answering. The speaker will
also be on during retrains or rate changes.
Range
0-4
See Also
L Command Speaker Volume Control