A
Modem Commands
Command
Description
A/
Repeat last command
A
Answer a call
B0
Select ITU-T modulation at 300 and
1200bps
B1
Select Bell modulation at 300 and 1200bps X
Dn
Dial, where n =
P — Pulse dial
T — Tone dial
W — Wait for dial tone
, — Pause
! — Flash hook
@ — Wait for 5 seconds silence
; — Return to command mode
^ — Toggle calling tone enable/disable
E0
Disable command echo
E1
Enable command echo
H0
Go on-hook
H1
Go off-hook
L0
Set lowest speaker volume
L1
Set speaker volume to low
L2
Set speaker volume to medium
L3
Set speaker volume to high
M0
Speaker is always off
M1
Speaker is on during call connection
M2
Speaker is always off
M3
Speaker is off during dialing and on during
call connection
AT Commands
Default
X
X
X
Modem Commands A-1