insys icom GPRS 5.1, Руководство пользователя, Страница: 58 / 102

Functions INSYS GPRS 5.1 serial
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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.
The INSYS GPRS 5.1 serial evaluates all SMS storage locations made
available by the GSM/GPRS engine (storage locations of the SIM
card and storage locations in the engine itself).
The SMS settings for the module-internal interface used for pro-
cessing are independent from the interface settings for the appli-
cation (text mode, used storage locations).
6.6 Manually Dispatching SMS
Note
The sending time of an SMS from the sender to a recipient depends
on the pertinent provider of the service number. Depending on the
network load and the time of day, an SMS may be on the way for an
extended period.
Due to the limited availability of AT commands in the operat-
ing mode "TCP Listen", no manual sending of SMS is possible
when the TCP Listen mode is active.