AT Command Reference
INSYS GSM small 2.0
Command
Description
ATS<n>
Reading/writing the S registers
Some S registers can only be modified in certain limits. The modem still
reports
OK
, although the value has not changed as specified. Some regis-
ters can only be read. We recommend therefore to check the results after
each write attempt, using the
ATSn?
command.
ATS<n>=x
Sets the S register n to the value x
ATS<n>?
Shows the value of the S register n
Especially ATS0=<n>
Automatic acceptance of CSD connections
<n>
0
Function disabled
2...n Ring tones until automatic call acceptance
If an error is returned upon
ATS0
, either the SIM card cannot be accessed
or GPRS is not supported.
AT&S<n>
Configuring the function of the DSR control line
AT&S0
DSR
always
ON (default)
AT&S1
DSR follows DCD
AT^STPB?
Querying the setting for parity bit transmission
AT^STPB=<n>
Transmitting the parity bit (only for data formats 7E1 and 7O1)
Concerns only the connection to the mobile network
<n>
0
Parity bit is not sent via the connection to the mobile net-
work and replaced with 0. (default)
1
The parity bit is correctly sent via the connection to the mo-
bile network as 8th bit. This setting should be used if data
transfer problems occur with the data formats 7E1 or 7O1.
ATV<n>
Format of modem messages
This command determines, whether the modem transfers messages to the
PC in short or long form.
ATV0
Messages to the PC in short form, i.e. only the error number
(default)
ATV1
Messages to the PC in long form, i.e. the error text
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