If you want to feed that to a pc then you can just simply download a Telephony activeX component and use any high level language like VB, Delphi, VC++ or any other language that supports ActiveX. This way you wouldn't need any external chip. With just a V90/92 modem you would implement this. If...
I am a newbie in the PLC world and I would appreciate you experts to helping me out. I want to have a PLC communicating with a GSM modem (or GSM phone) through an RS232 port sending GSM AT commands...like sending an SMS. Has anyone here interfaced a PLC with a GSM phone? What PLC would you...