Call and SMS BLocker

Call and SMS Blocker is the best app for identifying and blocking numbers, unknown callers.
it is both a call blocker and an SMS blocker.
this app can reject unwanted calls automatically. If you have been annoyed by spam calls from the salesman, or if you want to reject calls from anyone, you can just add the number to blacklist and let Call Blocker do the job. This app is light-weighted and stable, cost very little memory and CPU resources.
Features :
*Whitelist, add numbers that don't need to block to the whitelist.
*Blacklist, add numbers to blacklist to block.
*Reject unwanted calls automatically.
*Block calls and SMS using blacklist.
*Block SMS from alphanumeric numbers.
*Save/load blacklist.
*Turn on/off the blacklist.