Why would someone even want to only receive calls from saved number?
Imagine you have applied for job, but you can't get the call from recruiter because you don't have the number saved.
You have a important courier, the courier boy is unable to find your address, he tries calling you but you have blocked the call.
You forgot something in the cab, the honest cab driver tries to reach your device to inform, but you just walk away.
¯\_(ツ)_/¯
Last edited: Oct 17, 2021