Caution. This circuit is not approved for connection to the public switched telephone network (PSTN). Caution. Observe electrical safety precautions when connecting mains-operated loads to the circuit. This circuit can be called using your mobile or a regular telephone set (with DTMF keys) and after passing some procedures, you can control DC-powered appliances installed in your home. Examples include the front door latch and the pump of a plant watering system.
展开▼
