Appendices
%L - Level of line signal
Introduction
Result codes
Sends back a value which indicates the level of signal received. The returned value is a direct indication of the level of reception at the modem data pumping device, and not at the telephone line connector.
For example, 009 = -9 dBm, 043 = -43 dBm, and so on.
The following table lists the possible command responses.
Code
OK
Description n = 0 to 1.
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Appendices
%Q - Quality of line signal
Introduction
Result codes
Indicates the line quality (DAA function, network access connector). Sends back most significant byte of EQM value. Depending on the EQM value, there can be a resynchronization attempt or a fallback/increase of transfer rate, triggered by &E1 or
%E23.
The following table lists the possible command responses.
Code
OK
ERROR
Description
If connected.
If not connected or connected at 300 b/s, in V.23 or in fax mode.
Example AT&Q
015
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