It doesn't allow calls to come through on GChat.I shut it off bc I was tired of the person I blocked but he kept finding me. I want to turn back on. Wait! I don't like GChat, it allowed blocked contacts back on. I have 2 names but same person Patterson and Peterson same person I blocked but back again when hangout switched. I say, get rid of GChat bc hard to add an Invite. It lets blocked come back. Be more Responsible