The 3G remote switch is turned on by calling it – from any phone.
It doesn’t use any minutes because it doesn’t answer the phone – it looks at the Caller ID of the incoming call and if it recognizes it, it will reject the call and turn on the remote switch. It can be pre-set to stay on for up to 18 hours.
As an additional safety feature, it can also be programmed to ignore calls if it does not recognize the caller ID. Customizing and programming is simple – it’s done by send it text messages.
This new concept allows pilots to control an Aircraft Pre Heaters from a cell phone. The cell phone switch operates on any Global Cell Phone Network with a Prepaid network Sim Card.
The system does not need continually sending text messages as this unique system will operate by just a free telephone call to switch the device on and another to switch the device off!!!