I have a unrooted S5(SM-G900F) on Lollipop(5.0). All was well but recently I cannot receive calls in any of my apps- Viber/Whatsapp/Kakao/Skype etc. People have been calling me using these apps but it never comes through, it never rings. When I start the app manually I see I have missed calls. Normal calls are fine though.
Any idea what might cause this? I have scoured the web but cannot find any solutions. :'(
Any idea what might cause this? I have scoured the web but cannot find any solutions. :'(