Product specifications

GSP-1620 Modem Product Specification
80-99240-1 Rev. D 3-3
The SMS feature is fully functional even if the GSP-1620
modem is active on a data call, because SMS can be accessed
on the Control port. Therefore, the host application can send
command and control information to the modem either while
it is in a data session, or idle (not in a call).
Note
The SMS feature may not be available on all Gateways.
SMS Alerts
SMS “alerts” are asynchronous messages sent out of the Data
or Control port to the DTE application upon receipt of the
SMS message (see Data and Control Ports on page 5-4 for a
more detailed explanation).
Port configuration determines how SMS alerts are received:
• If the application is using the Control port, SMS alerts
are received on the Control port, even if a call is active.
• If the application is using the Data port only, the SMS
alert will be queued until the data session is terminated.
Once the DTE application receives an SMS alert, it is up to
the application to read the SMS message, using the
AT$QCSMSP command.
SMS Message Field Information
SMS messages can contain the following field information:
• Length of SMS
• Read status (new/read)
• Lock status
• Call back number (if available)
• Type (alpha, numeric, voice mail — these are
carrier-specific fields)
• Priority (urgent, normal)
• Time received
• Message content