Ways to block unwanted calls in a smartphone.

 There are a few ways to block unwanted calls on a smartphone:

1. Use the built-in call blocking feature: Most smartphones have a built-in call blocking feature that allows you to block specific numbers or contacts.

2. Use a third-party call blocking app: There are many third-party call blocking apps available for both iOS and Android devices that can help you block unwanted calls.

3. Add numbers to the phone's block list: You can add numbers to your phone's block list so that calls from those numbers will be automatically blocked.

4. Use Do Not Disturb mode: You can enable Do Not Disturb mode on your phone to block all calls and notifications during specific hours or when you don't want to be disturbed.

5. Contact your carrier: Some carriers offer call blocking services or features, so you may want to contact your carrier to see what options are available to you. Ultimately, the best way will depend on your personal preferences, but using a third-party call blocking app or built-in call blocking feature can be a good place to start.

Tthe best way will depend on your personal preferences, but using a third-party call blocking app or built-in call blocking feature can be a good place to start.

There are AI-based call blocking apps available for smartphones. These apps use artificial intelligence to analyze incoming calls and identify and block unwanted calls, such as telemarketing calls or spam calls.

For example, some apps use machine learning algorithms to learn the behavior of unwanted callers over time, and then automatically block those calls. Others use crowd-sourced data from users to identify and block unwanted calls.

It's worth noting that not all AI-based call blocking apps are created equal, so it's a good idea to read reviews and compare features before choosing one to use.

Here are a few AI-based call blocking apps for smartphones that you can consider:

1. Truecaller: This app uses a crowd-sourced database to identify and block unwanted calls. It also has a feature that automatically blocks spam calls.

2. Call Control: This app uses machine learning algorithms to learn the behavior of unwanted callers and automatically block them.

3. Call Blocker: This app uses AI to identify and block unwanted calls. It also has a feature that allows you to block calls from specific countries.

4. Mr. Number: This app uses a combination of crowd-sourced data and AI to identify and block unwanted calls. It also has a feature that allows you to block calls from specific area codes.

5. RoboKiller: This app uses AI to identify and block unwanted calls, including robocalls and telemarketing calls. It also has a feature that allows you to block calls from specific numbers or area codes.

These are just a few examples of AI-based call blocking apps that you can consider, there are many more available on the app stores. It's worth noting that not all apps are available on both iOS and Android, so check the app store where you are more likely to find the app you are looking for.