How to Control Home Appliances via SMS Using DTMF and Cellular Phones

Hi to all. Do anybody have any idea about Controlling Devices through SMS, I have used a cell phone but use its speaker, as I was using DTMF to control appliances:)

Hi Jeff-You can definitely do this, but we need more information to give you the best answer. If you're looking for a "Plug and Play" solution and all you want to do is turn a few devices on or off from your smart phone, consider the Belkin Wemo Smart plug .  It doesn't use SMS, but it can turn devices on and off from your phone.Questions: (1) do you want to build it yourself?, (2) Does it have to be SMS?  (3) will the device to be controlled always have access to a Wi-Fi network or must it receive control directly from the cellular network? (4) what kind of devices do you want to control? (5) how many devices do you need to control?  (6) Will all of the devices to be controlled be in the same place?-Rick

Jeff...Rick's answers are spot on, but thought I'd add my two cents worth.  In the old days of Nokia (remember them?) phones, particularly I think the venerable 5110, you could buy a device that plugged in and could (as I remember) both send and receive SMSs to send alarms and switch things on and off.  Those days are gone, but if you're technically inclined then you can build your own.  You can get Cellular modems which offer a standard serial interface and you can access the functions using AT commands (remember them too? including sending and receiving SMSs.  You'd hve to get something to communicate with it, be it a PC or something like an Arduino or a Raspberry Pi.  How this would help you depends very much on your levels of technical expertise with hardware and programming abilities.  It would be a nice project if you're up to it.