Saturday, September 8, 2012

How do i block a number?

I have an iPhone 4 and my provider is Tesco mobile.
There's this number who constantly calls me, at least 5 times a day, when it first started calling me i answered but the person on the other end would not speak. I'm sick of them calling me, but how do i block the number so it can't reach my phone?
Thanks
>>> How do i block a number?