Blocking numbers from phone

Call blocking apps let you create blacklists - lists of numbers to block from calling your cell phone. I like using LEO Privacy, it's very safe and makes me free. I always receive some harass calls, I'm really sad for that, until I found this app, I can add them into Blacklist. Love this app, so I recommand this app to you.
https://goo.gl/BCKwGq LEO Privacy Applock Boost Hide Android Apps on Google Play

LEO Privacy's Harassment Intercept can help you do this action. You can have a try. LEO Privacy Applock Hide Safe Android Apps on Google Play

I'm a businessman, I always receive some harass calls, with LEO Privacy I can put unwanted calls into the blacklist, and detect and block harass calls with harassment Intercept now, at the same time, I can also share them with my friends and family. Like this applock!

Every phone I've encountered only lets you block calls en masse. You can only choose to block all incoming calls. The only way to block certain numbers is to call your service provider and they'll do it, but it usually costs a decent amount of money.

There are 3rd-party applications that do realtime checking on incoming calls.
Problem is i have not been able to find them yet for your phone.
For newer nokia phones, there are several applications available.
You could search around the internet for blacklist applications, or blocking calls on nokia 7373.
Pre-installed on most nokias are functions for blocking all calls, or blocking calls from a certain country.