Telenetics 56 - Manual (Page 76)

AT Commands
Page 68
Modulation = “V92” for V.92 modulation.
“V90” for V.90 modulation.
“K56” for K56flex modulation.
“V34” for V.34 modulation.
“V32” for V.32 or V.32bis modulation.
Note: Modulation is omitted for all other modulations.
Protocol = “NONE” for no protocol.
“ALT” for Microcom Network Protocol.
“LAPM” for LAP-M protocol.
Compression = “V44” for V.44 compression.
“V42B” for V.42bis compression.
“ALT” for Microcom MNP5 compression.
Note: Compression is omitted if protocol is NONE.
Line Speed = Asymmetric rates are displayed as “/rate:TX/rate:RX”,
e.g.,/1200 TX/75 RX.
Symmetric rates are displayed as a single DCE rate, e.g.,
14400.
%L - Report Line Signal Level
Returns a value which indicates the received signal level. The value returned is a direct
indication (DAA dependent) of the receive level at the MDP, not at the telephone line
connector. For example, 009 = -9 dBm, 043 = -43 dBm, and so on.
Result Codes
OK
%Q - Report Line Signal Quality
Reports the line signal quality (DAA dependent). Returns the higher order byte of the
EQM value. Based on the EQM value, retrain or fallback/fall forward may be initiated if
enabled by %E1 or %E2.
Example:
AT%Q
015
Result Codes
OK If connected.
ERROR If not connected, or connected in 300 bps, V.23, or fax modes.