Where Viber course has its strengths, the use abroad. Here are traditional telephone calls but quite expensive. Viber provides a remedy where a wireless LAN is available, you can reach the loved ones at home with Viber. This works fine when the interlocutor also has Viber on his smartphone. Call quality is generally good to very good.
There is Abeer also the possibility to reach the caller in the fixed network. These things I have practiced in the past Egypt holiday so. With a convenient data SIM card purchased in the Vodafone shop locally, it was perfectly possible to call home on a landline. Here, however, is also a Viber balances necessary. I had problems aufgebucht and pay directly via PayPal and 5 euros. This 5 Euro have been enough several times to ask at home for the right hand and also for friends who we had met on holiday and have spared the high cost locally, enough credit was still there, so that they could more times calls in the home , If I remember correctly so has always cost about 10 cents a 'normal' call.
So just for the upcoming holiday season Viber is a great way to contact home without expensive hotel phones or DRGL. Produce.