Through the serial port control in delphi 7 对 GSM modem (SMS cat) to send and receive text messages of simple operation, great help for beginners

短信猫测试程序\gsm.dcu
..............\gsm.ddp
..............\gsm.dfm
..............\gsm.pas
..............\gsm.~ddp
..............\gsm.~dfm
..............\gsm.~pas
..............\..._at\gsm.dcu
..............\......\gsm.ddp
..............\......\gsm.dfm
..............\......\gsm.pas
..............\......\gsm.~ddp
..............\......\gsm.~dfm
..............\......\gsm.~pas
..............\......\gsm_at.cfg
..............\......\gsm_at.dof
..............\......\gsm_at.dpr
..............\......\gsm_at.exe
..............\......\gsm_at.res
..............\......\gsm_at.~dpr
..............\gsm_at.cfg
..............\gsm_at.dof
..............\gsm_at.dpr
..............\gsm_at.exe
..............\gsm_at.res
..............\gsm_at.~dpr
..............\gsm_at
短信猫测试程序

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