User Manual

AT Commands
A/ Re-executes the last issued command.
Used mainly to redial.
A Go off-hook and attempt to answer a
call.
ATS? Read Selected S-Register.
This command reads and displays the
selected S-Register. An S-Register can be
selected by using the ATSn command.
Dn Dial
0-9 DTMF digits 0 to 9
P Pulse (rotary) dial
T Tone dial
W Wait for second dial tone (X3 or
higher); linked to S6 register.
En Command Echo
E0 Disable command echo
E1 Enable command echo
Hn Disconnect (Hang-up)
H0 Hang up (goes on-hook)
H1 Go off-hook
In Identification
I0 Report product code
I1 Report chip tirmware version.
I2 Report “OK” or “ERROR”
I3 Report chipset name.
Chapter 3
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