Short messages containing 7bit textual information can be sent from the PC program to mobile phone. The mobile phone must be installed as a modem to the PC's operating system. And the phone must be connected to the PC using cable or infrared. See also " AT Command Set for Nokia GSM Products" in Smart Messaging documents.
This example shows how to send SMS in text mode:
//The SMS sending mode is changed to text mode (default is 0, PDU mode)
AT+CMGS="+4441793181022" <enter/carriage return> <text entered> <ctrl+z>
//The message is sent to entered to number +4441793181022. Replace this number with your own number.
The modem responds with "+CMGS: < TP-Message-reference value in integer format>" and OK, and the message is sent. Sending can be cancelled by using an <ESC> character. <ctrl-z> must be used to indicate the ending of a message body.