VEGA INSYS Modem GPRS 5.0 - Manual (Page 66)

Functions INSYS GPRS 5.0 serial
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the response returns automatically to the sender.
Configuration via SMS, if the INSYS GPRS 5.0 serial is protected
by a password. <password>,
<command>
Configuration via SMS, if the INSYS GPRS 5.0 serial is protected
by a password and a confirmation is desired.
Note: Between CN: <phonenumber> a space must be
entered. If no phone number is entered after CN:
the response returns automatically to the sender.
<password>,
<command>,
CN: [<phonenum-
ber>]
6.5.4 Access Protection
To protect against unauthorized configuration or attempts to es-
tablish a connection, two protection mechanisms are available
which are also used for incoming SMS.
Configuration password
Note: See also Chapter
6.1.1
- Password protection
Selective call answer
Note: See also Chapter
6.1.2
- Selective call answer
Depending on the settings, SMS from unauthorized senders
or with an invalid password are either
Deleted immediately, or
Stored in the memory and not processed
AT**PASSC=<pw>
AT**CLIP=1
AT**SMSRX=1
AT**SMSRX=2
6.5.5 SMS storage locations
The automatic processing of an incoming SMS takes place
via an independent, module-internal interface and has usu-
ally no effect on the communication between the applica-
tion and the GSM/GPRS engine.
Only when the SMS memory is accessed (especially reading
and deleting), it can happen that the µcontroller accesses
the SMS storage location at the same time.
In this case, the
application would receive ERROR as response. The applica-
tion should therefore execute the command once more, if
necessary.