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Cermetek Microelectronics, Inc.
Table 6B. Summary of Basic AT Commands.
Command
&F0
Restore Factory configuration 0
&F1
Restore Factory configuration 1
&G0
Disable guard tone
&G1
Disable guard tone
&G2
Enable 1800 Hz guard tone
&K0
Disable DTE/DCE flow control
&K3
Enable
control
&K4
Enable XON/XOFF DTE/DCE flow
control
&K5
Enable transparent XON/XOFF flow
control
&K6
Enable both RTS/CTS & XON/XOFF
flow control
Kn
CONTROLS
DURING THREE STATES
When modem receives a break from the DTE:
\K0, 2, 4
Enter on-line command mode, no
break sent to the remote modem
\K1
Clear buffer
\K3
Send
break
immediately
\K5
Send break to remote modem in
sequence with tranmitted data
When modem receives \b in on-line command
state:
\K0, 1
Clear buffers & send break to remote
modem
\K2, 3
Send break to remote modem
\K4, 5
Send break to remote modem in
sequence with tranmitted data
When modem receives a break from remote
modem:
\K0, 1
Clear data buffers and send break to
DTE
\K2, 3
Send break immediately to DTE
\K4, 5
Send break with received data to
DTE
\N0
Select normal speed buffered mode
\N1
Select direct mode
\N2
Select reliable mode
\N3
Select auto reliable mode
\N4
Force LAPM mode
\N5
Force MNP mode
\V0
Connect messages are controlled by
the command settings X, W, and S95
\V1
Connect messages are displayed in
the single line format
+MS
Select modulation
ERROR CORRECTING COMMANDS
%C0
Disable data compression
%C1
Enable MNP 5 data compression
%C2
Enable V.42bis data compression
High Speed Modem and FAX Family
2003 Cermetek Microelectronics, Inc.
Page 14
Document No. 607-0003 Revision K3 (09/03)
Function
RTS/CTS
DTE/DCE
flow
BREAK
HANDLING
to
remote
modem
Command
%C3
Function
Enable both V.42bis and MNP 5
compression
Set maximum block size in MNP to 64
Set maximum block size in MNP to
128
Set maximum block size in MNP to
192
Set maximum block size in MNP to
256
Send break of n x 100 msec
Select direct asynchronous mode
Set 10pps pulse dial with 39%/61%
make/break
Set 10pps pulse dial with 33%/67%
make/break
Set 20pps pulse dial with 39%/61%
make/break
Set 20pps pulse dial with 33%/67%
make/break
Select direct asynchronous mode
Modem negotiates an error corrected
link
Select asynchronous operation in
normal mode
Display current configuration
Store the active profile in NVRAM
profile 0
Store the active profile in NVRAM
profile 1
Recall stored profile 0 upon power up
Recall stored profile 1 upon power up
Store dial string x (to 31) to location n
(0-3)
Disable line quality monitor and auto
retrain
Enable line quality monitor and auto
retrain
Enable line quality monitor and
fallback
MNP10 COMMANDS
Disable MNP 10 extended services
Disable MNP 10 extended services
Disable MNP 10 extended services
FAX CLASS 1
Service Class
Data/fax auto answer
Receive data with HDLC framing
Receive data
Receive silence
Transmit data with HDLC framing
Transmit data
Stop transmission and wait
\A0
\A1
\A2
\A3
\Bn
&M0
&P0
&p1
&P2
&P3
&Q0
&Q5
&Q6
&V
&W0
&W1
&Y0
&Y1
&Zn=x
%E0
%E1
%E2
-K0
-K1
-K2
+FCLASS=n
+FAE=n
+FRH=n
+FRM=n
+FRS=n
+FTH=n
+FTM=n
+FTS=n