Can i block someone from calling and texting me on my Iphone 4?

Is there a way to block calls and texts on my Iphone 4? Each step if you can.

BLOCK MESSAGES: Go to Settings > Messages and turn on Filter Unknown Senders. When you open Messages, you'll see a new tab for Unknown Senders.
BLOCK NUMBERS: If you're in Recents in the Phone app or in FaceTime, tap Info icon next to the contact or phone number you want to block. If you're in Messages, open the conversation and tap Details, then tap Info icon.
Scroll to the bottom of the Info screen and tap Block this Caller.
Tap Block Contact.

See source for more info

You can also download a number block app too, which will have more options.

Iphones have this built in already, just use the block features already there as no app can match what is built in.

  • Is it possible to block a number from calling and texting you? I have an iPhone 4S. I'm getting hassle from someone and I would like to block them from calling and texting me. I'm with Orange, I have called them and they said they are unable to block personal mobile numbers and could only suggest I change my number. I would rather not change my number. Any tricks or apps to block such a nummber?
  • If I block other iPhone users from calling and texting me, will they know? I've got a 4S and was wondering if I blocked a couple people in my contacts with the same phones if they would know? What would happen if they called or texted me? Really need to know before I go ahead and do this, that way I don't get criticized for shunning them out of my life. I just can't deal with their annoying and ignorant texts anymore. Some friendships just don't last I guess and I'm too kindhearted to just tell them to downright quit texting me. Thoughts?
  • I would wanna block someone that keeps calling me? I've been looking up things for it but all i find, is that i have to jailbrake my iphone first…
  • How to block your number when texting someone on iPhone 4? Someone texted my friend and was trying to act like me but I don't know who it was. They were using a pinger number so it wouldn't let me call them. I have an iPhone 4 and I want to text them without them knowing my number. How can I block it if I text them?