Huawei p7 blacklists SMS numbers. How to cancel?

If there is a call record, press and hold the number in the call record, and the blacklist function will appear in the pop-up menu after releasing your hand.

If you want to add the number directly to the blacklist, click Dial. There are three points on the lower right. You can see "harassment interception" after clicking. Just click and you'll find a way.