It's baffling how incompetent the developers at Viber are. Every update brings new sets of problems. The latest one has made the app completely useless. I can no longer make calls. As soon as I try, it rings once and then gives a call failed error. I can receive calls, I just cannot make them any more. Using Lumia 1020.
Restart, reinstall, nothing works.
Restart, reinstall, nothing works.