The person or business that you want to call also needs to use WhatsApp. This leaves out landlines, and those who don't use WhatsApp. That's what I use Viber for. The calls only cost me about 2 cents a minute.
Perhaps I've misunderstood, but it's easy to use WhatsApp for calls as well as messages. There's no need for another app. WhatsApp calls use data, not the telephone system, and it's widely used for calls in Spain (and other countries). For some...
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