If mobile[switch] is installed in a location with poor reception (e.g, basement), the bundled external antenna offers optimal reception.

In order not to allow any person to control mobile[switch] it is possible to configure six mobile phone numbers as trusted numbers allowing to control mobile[switch] by SMS text messages.

Successful execution of an SMS command is confirmed by mobile[switch] by calling back and immediate release of the connection after 2x ring, in order to avoid traffic charges.

In principle, mobile[switch] can be operated with any mobile phone subscription. Even the use of a prepaid subscription is possible.