Using Voice over Internet Protocol (VoIP) calling applications on your mobile phone can save you money if you make a lot of international calls or travel out of the country often. iPhone users have several options when deciding what app to download.
Top countries:
United States 1294
India 440
United Kingdom 425
Canada 348
Bangladesh 338
China 142
Pakistan 134
Australia 133
Spain 123
Russia 114View all countries
United States 1294 India 440 United Kingdom 425 Canada 348 Bangladesh 338 China 142 Pakistan 134 Australia 133 Spain 123 Russia 114