Set
|
AT Command Description [where
n = nos]
|
|
|
A/
|
Re-execute command
|
AT?
|
Read selected S-Register
|
ATA
|
Answer
|
ATB0
|
Set CCITT V.22 connection
@ 1200 bps
|
ATB1
|
Set Bell 212A connection
@ 1200 bps
|
ATC1
|
Carrier control
|
ATDn
|
Dial modifier - refer specific modem
|
ATE0
|
Command echo OFF
|
ATE1
|
Command echo ON
|
ATF0
|
Auto detect mode
|
ATF1
|
Select V.21 or Bell 103
|
ATF2
|
Reserved
|
ATF3
|
Select V.23
|
ATF4
|
Select V.22 or Bell 2112A 1200
|
ATF5
|
Select V.22 bis
|
ATF6
|
Select V.32 or V.32 4800
|
ATF7
|
Select V.32 bis 7200
|
ATF8
|
Select V.32 bis or V.32 9600
|
ATF9
|
Select V.32 bis 12000
|
ATF10
|
Select V.32 bis 14400
|
ATH0
|
Initiate hang-up sequence
|
ATH1
|
If on-hook, go off-hook & enter command mode
|
ATIn
|
Identification - refer specific modem
|
ATLn
|
Speaker volumes [0 low; 1 low; 2 medium; 3 high]
|
ATMn
|
Speaker on/off controls
|
ATNn
|
Auto-mode detection [0 OFF; 1 ON]
|
ATOn
|
Go on-line [0 ; 1 Go on-line & initiate sequence]
|
ATP
|
Set Pulse dial as default
|
ATQn
|
Result codes [0 Allow result codes to DTE; 1 Inhibit
result codes]
|
ATSn
|
Select S-Register n
|
ATSn?
|
Return value of selected S-Register
|
ATSn=x
|
Write value to selected S-Register
|
ATT
|
Set Tone dial as default
|
ATVn
|
Result codes [0 Short form; 1 Long form]
|
ATWn
|
Negotiation progress reporting - refer specific modem
|
ATXn
|
Extended result codes - refer specific modem
|
ATYn
|
Long space disconnect before on-hook [0 Disable; 1
Enable]
|
ATZn
|
Reset stored profile [0 or 1] after warm reset
|
&
|
|
AT&Cn
|
DCD option - refer specific modem
|
AT&Dn
|
DTR option - refer specific modem
|
AT&F
|
Restore factory configuration or:
|
AT&Fn
|
Restore factory configuration [0 or 1]
|
AT&Gn
|
Set guard tone - refer specific modem
|
AT&Jn
|
Telephone jack selection or S-Register response - refer
specific modem
|
AT&Kn
|
DTE / modem flow control - refer specific modem or:
|
AT&K0
|
Disable DTE / DCE flow control
|
AT&K3
|
Enable RTS / CTS - DTE / DCE flow control
|
AT&K4
|
Enable XON / XOFF - DTE / DCE flow control
|
AT&K5
|
Enable transparent XON / XOFF flow control
|
AT&K6
|
Enable both XON / XOFF - RTS / CTS flow control
|
AT&Ln
|
Line type
|
AT&Mn
|
Communication mode - refer specific modem
|
AT&Pn
|
Dial pulse ratio - refer specific modem
|
AT&Qn
|
Communication mode - refer specific modem
|
AT&Rn
|
CTS / RTS option - refer specific modem
|
AT&Sn
|
DSR option - refer specific modem
|
AT&Tn
|
Test & diagnostics - refer specific modem
|
AT&V
|
View current configuration / profile
|
AT&Vn
|
Statistics - refer specific modem
|
AT&Wn
|
Store active profile in NVRAM [0 or 1]
|
AT&Xn
|
Selection timing for transmit clock [0 Internal; 1
External; 2 Slave receiving]
|
AT&Yn
|
Designate default user profile [0 or 1] on power up
|
AT&Zn=x
|
Store dial string (x) up to 34 chars? in location [n= 1
or 2 or 3]
|
%
|
|
AT%Cn
|
Compression control [0 Disable; 1 Enable MNP5; 2 Enable
V.42 bis;
3 Enable 1 & 2]
|
AT%Dn
|
Set dictionary size (BTLZ) - refer specific modem
|
AT%En
|
Line quality monitor & retrain
[0 Disable; 1 Enable; 2 Enable & fall back / forward]
|
AT%L
|
Report received line signal level
|
AT%Mn
|
Set one / two-way mode (BTLZ) - refer specific modem
|
AT%P
|
Clear BTLZ encoder dictionary - refer specific modem
|
AT%Q
|
Report line signal quality
|
AT%Sn
|
Set maximum string length (BTLZ) - refer specific modem
|
AT%7
|
Plug & play serial number - refer specific modem
|
AT%8
|
Plug & play vendor ID serial nos - refer specific
modem
|
\
|
|
AT\An
|
Maximum block size in MNP [0 to 64; 1 to 128; 2 to 192; 3
to 256]
|
AT\Bn
|
Transmit break of n x 100 ms
|
AT\Gn
|
Modem to modem flow control - refer specific modem
|
AT\Kn
|
Break control - refer specific modem
|
AT\Ln
|
MNP block transfer control - refer specific modem
|
AT\Nn
|
Mode control [0 Normal speed buffered; 1 Direct; 2
Reliable link;
3 Auto reliable; 4 Force LAPM; 5 Force MNP]
|
AT\O
|
Originate reliable link control
|
AT\Tn
|
Inactivity Timer control
|
AT\U
|
Accept reliable mode control
|
AT\Vn
|
Connect message - refer specific modem
|
AT\Y
|
Switch to reliable mode
|
AT\Z
|
Switch to normal mode
|
+
|
|
AT+H0
|
Disable RPI / Video ready mode
|
AT+H1
|
Enable RPI and set DTE speed to 19200 bps
|
AT+H2
|
Enable RPI and set DTE speed to 38400 bps
|
AT+H3
|
Enable RPI and set DTE speed to 57600 bps
|
AT+H11
|
Enable RPI+ mode
|
AT+H16
|
Enable Video ready mode
|
-
|
|
AT-Kn
|
MNP 10 extended services [0 Disable; 1 Enable; 2 Enable
detection only]
|
AT-SEC=0
|
Disable MNP 10-EC - refer specific modem
|
& Hosted