This topic describes the operations to configure, read/receive, send, and delete messages using Short Message Service (SMS) capabilities of an MB device.
SMS support is mandatory. Miniport drivers must set the appropriate send and receive SMS capability flags that they support when processing OID_WWAN_DEVICE_CAPS query requests in the WwanSmsCaps member of the WWAN_DEVICE_CAPS structure. If miniport drivers do not support SMS, they should specify WWAN_SMS_CAPS_NONE and return WWAN_STATUS_SMS_UNKNOWN_ERROR for all SMS-related OIDs.
Miniport drivers should only process SMS operations after OID_WWAN_READY_INFO returns WwanReadyStateInitialize as the device ready-state. Miniport drivers should process some SMS operations, such as sending a SMS message, only after the device is registered on a provider network (though not necessarily data service registration).
The MB Service does not differentiate between different message stores available in the device. Therefore, miniport drivers must handle all message stores and project a single virtual message store accessed by means of a virtual index. For example, if the device has three message stores, the miniport driver must handle all of them collectively and present them as a single message store to the service.
The MB driver model supports the following SMS Operations:
We recommend miniport drivers support SMS configuration, read, send, and delete operations, as well as notifying the user of any new SMS message received by a device.