This function, obtainable on Android units, restricts outgoing calls to a pre-defined record of phone numbers. For instance, a mother or father may allow it on a baby’s cellphone, limiting calls solely to relations and emergency companies. The performance makes use of the SIM card’s capabilities to manage permitted locations.
Proscribing name locations supplies elevated management over cellphone utilization, notably in conditions the place limiting communication is desired or obligatory. Traditionally, this performance discovered use in company settings for specialised units and has develop into accessible to a broader consumer base by cellular working programs, providing a safety measure and controlling communication prices.