How does iphone5 block short messages?

If your IPHONE5 is still an ios6.0 system, use third-party software to block it. If you upgrade IOS7.0, the system itself can be realized.

IOS7.0 shielding method

1. Phone number shielding: select the phone number to be shielded, click the small circle with exclamation mark on the right, pull it to the bottom, and click to shield the secondary call number.

2. Spam SMS Interception: Select the SMS to be intercepted, open it, click the contact in the upper right, then click the small circle with exclamation mark in the upper right, pull it to the bottom, and click the number to intercept the incoming call.