This characteristic, accessible on Android gadgets, restricts outgoing calls to a pre-defined checklist of phone numbers. For instance, a father or mother would possibly allow it on a baby’s cellphone, limiting calls solely to members of the family and emergency providers. The performance makes use of the SIM card’s capabilities to regulate permitted locations.
Proscribing name locations offers elevated management over cellphone utilization, significantly in conditions the place limiting communication is desired or vital. Traditionally, this performance discovered use in company settings for specialised gadgets and has turn out to be accessible to a broader consumer base via cell working methods, providing a safety measure and controlling communication prices.