Send to Voicemail : blocked call goes directly to voicemail.
+ Pick – and hang up: prevent the caller to leave you a voice message.
+ Mute alone : only turn off the ringer on your side.
+ Allow call , not voice mail : You can call ringing as usual, but no voice messaging enabled .
+ Prevent Outgoing Calls : Outgoing call to a particular number.
+ Invisible Mode , remove the application icon from your application list.
+ Support Blocking UNKNOWN calls, private or restricted .
+ Ability to block all numbers not in your contacts in one click.
+ Posts in charge of automatically reply to blocked text messages or calls.
+ Support Backup and Restore to / from SD card or Dropbox .
For More Info Google Play