When ever i call a certain number it wnt call and it says that i need to change the restriction

You can't unblock an incoming number that's blocked, but you can call your phone company and see if they have a service that restricts blocked numbers from calling you. The callers would then have to unblock the number to get thru.

https://www.facebook.com/help/121070141307903

You might want to try this free app (android) it states it will hide your IP.

You don't. It's looking for an ACCOUNT number, which are assigned by the system manager. The number you have dialed is restricted by class of service. If you have a class override code, you can use that, or go to a different phone.

You can use Hotspot Shield free VPN to unblock country specific videos

http://www.thehotspotshield.com/2012/09/unblock-youtube-in-your-country.html

This is a service that you normally have to pay a little extra for. Contact your service provider, or check your account on their website. They will be able to give you the correct details. Each phone company operates a little bit differently than the next.

There is no cost to perform this action on a per call basis. Check with AT&T...you enter something like *87 or *82 before you dial the phone number.

yes i can help you. You need a unblock code from your network as you have blocked your phone

There are a few services that make it easy to find the real number of a blocked or restricted caller. They do cost money (some as low as $5.00 per month to unmask numbers) to use with your cellphone.
You can even get the name and address of a blocked caller. Check into caller id unblocking services. Hopefully that will help you out.
Unblock restricted numbers with Trapcall's Bug Trap