Specifications

Windows Embedded Automotive 7 Deep Dive: Phone Core and Media Core 44
An SMS application that is provided by an OEM should use the SMS router API to subscribe to
messages. This method lets messages be filtered and even targeted for specific applications
through the SMS router. Message filtering, parsing, and targeting are all configurable.
GSM SMS AT Command Support
A phone must support MAP or GSM SMS AT commands to operate with Windows Embedded
Automotive 7. Phones must be able to send, receive, notify, and download all unread messages.
Automotive 7 supports USC2, GSM-encoded characters, and unpacked 8-bit encoding.
SMS Stack and MAP Service
The SMS stack includes services for SMS message retrieval via SMS and AT, Protocol Data Unit
(PDU) message parsers, and message routing mechanisms. Figure 12 illustrates the components
and relationships of the SMS stack.
Figure 12: SMS stack
The MAP provides a set of features and procedures to exchange SMS and e-mail messages
between devices. The MAP service interfaces to the OBEX layer of the Bluetooth stack and
provides functionality for new message notifications and folders for incoming and outgoing SMS
messages. The MAP Manager handles SMS download arbitration (SMS or MAP), phone-specific
SMS behaviors, and provides the overall SMS interfaces.