从终端设备向蜂窝电话发送短消息文本是十分简单的。以下的代码片段就演示了这个过程。所使用的电话是nokia 7100系列，并且me (mobile equipment)是连接在计算的#1号通信端口上。
注意到ctrl-z是用来表示终结发送到移动设备的文本输入。
使用visual basic来发送sms文本到nokia电话：
' set up the communications port mscomm1.commport = 1 ' com port 1 ' set for 9600 baud, no parity, 8 data, and 1 stop bit. mscomm1.settings = "9600,n,8,1" ' tell the control to read entire buffer when input is used mscomm1.inputlen = 0 ' open the port mscomm1.portopen = true ' send an 'at' command to the phone mscomm1.output = "at" & chr$(13) & chr(10) ' the phone will respond with an 'ok' ' set up the phone for a text message mscomm1.output = "at+cmgf=1" & chr$(13) & chr(10) ' the phone will respond with an 'ok' ' prep for sms, give destination type and destination address. ' enter the destination type and destination address to prep for sms ' e.g. at+cmgs="+2145551212",129 mscomm1.output = "at+cmgs= " & chr(34) & "+2145551212" & chr(34) & ",129" & chr$(13) & chr(10) ' the phone will return a'>' prompt, and await entry of the sms message text. ' now send the text to the phone and terminate with (ctrl-z) mscomm1.output = "this is a test. wow! " ' the phone will respond with a conformation containing the 'message reference number' eg. +cmgs:' close the port mscomm1.portopen = false
在终端，看起来就象下面：
at ok at+cmgf=1 ok at+cmgs="+15127752607",129 >this is a test. wow! +cmgs: 49 ok
想了解更多的有关发送sms文本信息的内容，请参考gsm 07.05白皮书在etsi web site。想了解更多nokia关于sms的信息，请去http://www.forum.nokia.com，并登陆到smart messaging forum。
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