The PsionTeklogix Mobile Devices SDK includes a Wireless Wide Area Network (WWAN) API that includes features attainable in present day cellular (mobile) phones such as sending and receiving textmessages, establishing and tearing down WWAN data (GPRS) connections, mobile telephony and lots more.
This sample code snippet levarages the PTX MDSDK WWAN API for sending and checking text messages available on a active(provisioned) SIM card. This code snippet runs on Windows Mobile 6.x Operating system on the Workabout Pro G2 and down the road, Workabout Pro G3.
App was designed in Visual Studio .NET 2005 (C# style).
The WWAN modem can be queried for the mailbox structure. Please refer to the PTX mobile devices SDK Developers guide for literature on SIM card mailboxes. From the screen shot below, the SIM card has 3 mailboxes (the WWAN modem may also have provision for a mailbox). The buttons are for sending, checking and querying the modem for mailbox information.
Queries mailbox, showing an SMS block in the mailbox.
Source code in .NET for implementation8524.TextMessageApp.zip