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Ln – Speaker Volume
The modem sets the speaker volume depending on the value used according to the following list.
The value is written to register S22 bit 0 and 1.
L0
Speaker off.
Low volume. (Default)
L1
L2
Medium volume.
L3
High volume.
Please also refer to ATM
%L – Signal level on line
This command returns an approximate numerical value for the received signal level.
For instance 007 indicates a received signal level at –7 dBm and 033 indicates –33 dBm.
For leased line the value should be better than -40 dBm. This is however depending on the noise
level, which should be at least 6 dBm lower than the signal itself in order for the communication to
work properly.
Please also refer to AT%Q
\Ln – MNP Block or Stream Mode Select
This command controls the selection between block and stream modes of operation in MNP protocol
during connection.
Uses stream mode for MNP connections. (Default)
\L0
\L1
Uses block mode for MNP connections.
Please also refer to AT\N
Mn – Speaker Control
This command controls the use of the speaker. The volume is set with the command Ln.
The value is written to register S22 bit 2 and 3.
M0
The speaker is always off.
The speaker is on during call establishment, but off when detecting carrier (Default)
M1
M2
The speaker is always on.
M3
The speaker is the same way as in M1 but only when answering and not when the
modem itself calls or after the modem has detected a carrier.
Please also refer to ATL
24
6178-2203
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