My conference call option is not working. When I try to do a conference call it allows me to call on the other line but does not allow me to go back to the original call. It freezes and then a sign comes up saying app is not working do I want to wait or close the app. 2/222 updates: I've cleared it multiple times and it seems to have gotten worse. Now not only can I not do a conference call but I can no longer hang up from a call. I have to restart the phone app to end a call. This is terrible