+ Pick-up-and-hang up: prevent the caller to leave you voicemail.
+ Mute alone: only mute the ringer on your side.
+ Allow call, not voice mail: You can use sound as normal, but not voice mail permitted.
+ Hidden in private: blocked message hidden in the private mailbox, accessible only with a password.
+ Automatic answer only: send an automatic reply only, do not block the messages.
+ Support Blocking UNKNOWN calls, private or restricted.
+ Ability to block all numbers not in your contacts in one click.
+ Automatic sending messages of support to answer text messages or blocked calls.