SMS Guide: 4.1 Receiving an SMS Message: SM Receive and the Mailbox Library

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When the GSM network informs the unit that is has an SMS message pending for receipt, it launches the SM Receive application. This application retrieves the SMS message(s). If the message is a standard SMS message, it routes the message to the application's "Received messages" folder.

If the message is targeted to a specific application, the SM Receive application contacts the mailbox and places the message in the mailbox's inbox . The mailbox then contacts the application by sending it a message ( MSG_META_MAILBOX_NOTIFY_MESSAGE_AVAILABLE ). If the mailbox cannot contact the application, it re-routes the message back to the SM Receive application.

You do not need to know how the SM Receive application works, but it is useful to know the process which occurs when an SMS message is received.


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