Calling as an unknown quantity, often known as personal calling or nameless calling, permits you to make telephone calls with out revealing your caller ID data to the recipient. This may be helpful for numerous causes, resembling defending your privateness, conducting market analysis, or avoiding undesirable calls.
There are a number of methods to name as unknown on an iPhone. One methodology is to make use of a #31# prefix earlier than the telephone quantity you want to name. For instance, to name 555-123-4567 as an unknown quantity, you’ll dial #31#555-123-4567.