Using AT commands to Send and Receive SMS

Tutorial :: Using AT commands to Send and Receive SMS
http://www.control.com.sg/at_commands_sms.aspx#Receiving%20SMS%20using%20using%20AT%20commands


SMS source samples (for GSM phones)
http://www.scampers.org/steve/sms/samples.htm


AT commands for GSM (GB2312)
http://www.cnblogs.com/goodloop/archive/2006/03/03/342282.html