Excellent to remotely control via GSM the activation of engines, lightening or watering systems and alarm systems. It sends commands through SMS as well as with DTMF dual tones and allows you to check ...

Advancing GSM architectures many not seem like a sexy topic in an age where 2.5G and 3G technologies are the talk of the town. However, the reality is that like AMPS in the past GSM is becoming a base ...