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MTL01
AT%E
AUTORETRAIN CONTROL
%E0
Autoretrain disabled.
%E1
Autoretrain enabled.
%E2
Fallback/fallforward enabled. Enabled only in error corrector or buffer mode.
AT%L
DISPLAY RECEIVE LEVEL IN DBM
Returns a value which indicates the received signal level.
Example 009 = -9 dBm, 043 = -43 dBm.
AT%Q
LINE SIGNAL QUALITY
From 000 (good quality) to 127 (poor quality, troubled signal).
AT&C
CARRIER DETECT OPTION
&C0
Carrier detect always ON. When modem disconnect DCD (C109) goes OFF for 1 sec.; function
109 wink.
&C1
Carrier detect is ON when remote carrier is present.
AT&D
DATA TERMINAL READY OPTION
&D0
DTR signal is ignored.
&D1
Modem return to Command Mode upon detecting ON to OFF transition on DTR.
&D2
Modem hangs up and disables auto-answer upon detecting ON to OFF transition on DTR.
&D3
Modem reset upon detecting ON to OFF transition on DTR.
AT&F
FACTORY CONFIGURATION
&F0
Load factory configuration 0.
&F1
Load factory configuration 1.
AT&K
DATA FLOW CONTROL
&K0
Flow control disable.
&K3
Hardware flow control (RTS/CTS) enabled (Default for data modem modes).
&K4
Software flow control (Xon/Xoff) enabled.
&K5
Software flow control (Xon/Xoff) in trasparent mode enabled.
&K6
Hardware and software flow control enabled (default for fax modem modes).
AT&P
MAKE/BREAK RATIO
&P0
39%-61% make/break ratio with 10 pulses per second.
&P1
33%-67% make/break ratio with 10 pulses per second.
AT&Q
OPERATING MODE SELECTION
&Q5
Operations with error corrector. It is automatically selected with \N command (different from 0
and 1).
&Q6
Asynchronous with buffer enabled (AT\N0).
AT&R
C106
&R0
In asynchronous mode, C106 is controlled according to V25 handshake reccomandation.
&R1
In synchronous mode, C106 follows the flow control.
AT&S
C107 (DATA SET READY OPTION)
&S0
DSR will remain ON all the time.
&S1
DSR will become active after answer tone has been detected and inactive after the carrier has
been lost.
AT&V
VIEW ACTIVE AND STORED PROFILES
AT&W STORE ACTIVE PROFILE
&W0
Store active profile as Profile 0.
&W1
Store active profile as Profile 1.
AT&Y
DEFINE DEFAULT PROFILE AFTER POWER ON
&Y0
Use profile 0 after power on.
&Y1
Use profile 1 after power on.
3.5
Modem AT Command Set
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