Call protect is an application created by AT&T to help block unwanted phone calls. It is not needed but something good to have. Until they fix their bug in the software, you can uninstall the latest update or disable it as other have stated. If you don't see it you can search for it on your phone. Others have also stated that they had to configure it first then they disabled it. If you are can't find it or continue to have issues. I would suggest calling AT&T for assistance or going to store and ask them to help you. Hope this helps.