How to intercept SMS on LeTV mobile phone?

Letv mobile phone blacklist setting method: Method 1. Enter Settings-Application Settings-Phone/Contact or Information-Blacklist by operating the Settings menu, click the+sign in the upper right corner, select the number from the contacts, select the interception content from the options of intercepting phone calls and information, intercepting phone calls and intercepting information as required, and add blacklisted contacts. Click the blacklist number, re-select the intercepted content and delete the blacklist; Method 2: Set the call record/short message record on the call record or information record page, select the number to be set to enter the call details page or short message details page, and then choose to join the blacklist, and follow the prompts to add blacklisted contacts. By default, calls and messages are blocked. If you want to delete the blacklist, you can click Delete Blacklist directly on this page, or you can delete it on the Settings menu operation page of Method 1.