At Command Summary - Epson 500 Series User Manual

AT Command Summary

Command
+++
A /
AT
A
B0
B1
D
E0
E!
HO
H !
I0
I1
I2
L3
M 0
M1
M2
M3
O0
O1
Q0
Q1
Sr
Sr?
Sr=n
V0
V1
X0
X1
X2
X3
Fax/Modem
B - 4
Description
Escape code
Repeat last command string
Attention
Answer immediate (incoming call)
CCITT v.22 protocol at 1200 bps
Bell 103/212A protocol at 1200 bps
Dial: originates a call
Echo off (command mode)
Echo on (command mode)
On hook: hang up immediately
Off hook: ready to dial
Returns modem's product ID code
Returns modem's ROM checksum
Tests modem's internal memory
Speaker volume high
Speaker always off
Speaker on until carrier is detected
Speaker always on
Speaker on after lost digit dialed; off when carrier is detected
Return on-line
Return on-line and initiate equalizer retrain (2400 bps)
Result codes on
Result codes off
Sets pointer to register r
Reads value stored in r
Sets register r to n
Returns result codes as numbers
Returns result codes as words
Enables basic result codes (0-4)
Enables extended result codes (0-5, 10)
Enables extended result codes (0-6, 10)
Enables result codes (0-5,7,10)