How to Unblock Blocked Calls on Cell Phones

1. Visit a website with a service that can help you identify blocked calls. An example is TrapCall (See Resources). This is an experimental service you can try out completely free of charge.
2. Click on the button that will let you try out the service for free on the main website. This will take you to a service page. Click on the 'Free' option. On the next page, you'll input your cell phone number, your time zone and your service provider.
3. Check the 'I agree to the Terms of Service' box and then click on 'Next step.' It will tell you to input some numbers into your phone. After you've done this, click on the button marked 'OK' and on the one marked 'Done.' Wait for the confirmation code to come, in the form of a voice-mail, on your cell phone.
4. Enter your name back on the webpage, along with the confirmation code and click 'Next Step.' After you've fully registered, all you have to do is wait until a blocked number calls you. Reject the call, and then the service will unblock the number for you, showing the number of the caller on your phone.