Functions
INSYS GSM 4.3
Configuration with AT commands
In order to enable DTMF mode, use the
command
AT**DTMF=1
In order to disable DTMF mode, use the
command
AT**DTMF=0
In order to query the state of this function,
use the command
AT**DTMF?
After changing the DTMF mode, the INSYS
GSM 4.3 must be reset that the changes
become effective. For this, use the com-
mand
AT**RESET
If the DTMF processing is enabled, automatic call acceptance does not
have to be enabled explicitly, because the INSYS GSM 4.3 accepts
voice calls automatically in any case.
Switching and querying the outputs and inputs via DTMF can be protected with the
optional DTMF PIN. The DTMF PIN protects the access for switching and querying
the inputs/outputs via DTMF tones during a voice connection. The DTMF PIN con-
sists of 4 digits.
The DTMF PIN must not be mixed up with the PIN of the SIM card.
These are two independent PINs.
Configuration with HSComm
In order to enable the DTMF PIN, click on the “Access Control” tab on
the “Password for” panel on the “set PIN” button under “output control
by DTMF”. Enter the PIN into the “new PIN:” field and again into the
“confirm PIN:” field and click the “OK” button.
In order to change the DTMF PIN, click on the “Access Control” tab on
the “Password for” panel on the “set PIN” button under “output control
by DTMF”. Enter the old PIN into the “old PIN:” field and the new PIN
into the “new PIN:” field and again into the “confirm PIN:” field and click
the “OK” button. If you do not enter a new PIN, the DTMF PIN will be
disabled.
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