I've been trying to set up Talkatone on the S5 to be able to use it with the pc's wifi. In fact, that's how I'm using AF. I've run into a problem. When it asks for an email address and I give it that, it says suspicious activity. As far as I know, it doesn't send an email message either. What can I do to fix this? I don't have any phone service provider and right now I don't want one. Should I keep trying with Talkatone or go with something else?