SMS and EMS. You will learn what SMS is, what causes SMS messaging to be so popular worldwide, what applications can be developed with the SMS technology, what SMS center and SMS gateway are, and some other basic concepts of SMS messaging.
After that, we will discuss in detail various ways to send and receive SMS messages from a computer, the advantages and disadvantages of each way, what SMS service providers are, the hardware (e.g. GSM / GPRS modem) and software (e.g. HyperTerminal) required to send and receive SMS messages from a computer, and where to find some free SMS messaging libraries and tools.