SMS Receiving and Dispatching System Based on Embedded Linux

The SMS receiving and dispatching system is designed in this paper, which consisting of embedded Linux system and GPRS module. The principle of work and frame of system are given. How to encode the message in PDU mode, decode the message from PDU and the SMS receive/send flow under the control of AT commands, is the technical difficulty in SMS terminal developing. based on the embedded Linux system, Several solutions are given.