The Hyallo blog
Guides and tips for calling any phone, anywhere, for less.
The best Skype alternatives for international calls in 2026
Skype shut down in May 2025. Here are the best alternatives for calling real phone numbers abroad — and how to pick the right one.
Read moreHow to call a hotel or business abroad without roaming fees
Need to reach a hotel front desk, an embassy, or a shop in another country? Here is how to call any business line abroad for cents, without roaming charges.
Read moreHow country codes work (and how to dial any number abroad)
What the + means, how country codes and area codes fit together, and the exact order to dial an international number from anywhere.
Read moreHow to call a landline or a non-WhatsApp number
WhatsApp can only call other WhatsApp users. Here is the simple way to call a landline, a business, or anyone who is not on the app.
Read moreHow to call Brazil from abroad: the complete guide
Country code, area codes, the leading 9 for mobiles, and the cheapest way to call a Brazilian landline or mobile from another country.
Read moreThe cheapest way to call abroad in 2026
Roaming and carrier international rates are still painfully expensive. Here is how to call any country for a few cents a minute instead.
Read moreeSIM vs internet calling: which is cheaper for calls abroad?
Travel eSIMs are great for data, but they are not always the cheapest way to make a call. Here is how the two compare and when to use each.
Read moreIs browser calling safe? How WebRTC calling works
Calling a phone straight from a web page sounds new, but the technology behind it is mature and encrypted. Here is how browser calling works and why it is safe.
Read moreWiFi calling for international numbers: what actually works
Carrier "Wi-Fi Calling" does not make international calls cheap — it still bills your carrier rates. Here is the difference and how to actually call abroad over Wi-Fi for cents.
Read moreCalling from a cruise ship or a plane without a huge bill
Cellular at sea and in the air is some of the most expensive on earth. Here is how to make calls from a cruise or a flight over Wi-Fi instead — and when it works.
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