applesbana
Not a stupid question friend, by adding your xmpp address as a calling account allows you to use the GOS phone app/ dial pad to make calls like a normal phone, But untill there is an update for android you will have to reselect your account after every boot which isn't a bid deal for the benefit it does. How you do it is go to settings in the actual phone app, select calls tab, select calling accounts, and select your xmpp address.