Why Regular Calls Sometimes End up on Viber?
And the caller has to pay for his/her calls in both cases: whether they reach you on Viber or in a regular way.
"This is quite a problem for me, all foreign numbers are ringing via Viber app which has a significant worse voice quality as a build-in phone app. I have to turn off my mobile data to receive calls from foreign countries so the other side can hear me well." someone commented below the article 4 days ago.