With good range ( up to indoors and using directional antennae outdoors ) , dedicated spectrum , high interference immunity , open interoperability and data speeds of around 500 kbit/s , DECT appeared at one time to be a superior alternative to Wi-Fi .
With good range ( up to 200 m indoors and 6 km using directional antennae outdoors ) , dedicated spectrum , high interference immunity , open interoperability and data speeds of around 500 kbit/s , DECT appeared at one time to be better than Wi-Fi .