Callzo is described as 'Backup call line for international travelers. When you're abroad and need to call back home, reach a hotel before arrival, contact customer support, or just tell family you landed safe — Callzo lets you make regular calls directly from your browser' and is an website in the social & communications category. There are three alternatives to Callzo, not only websites but also apps for a variety of platforms, including Android, iPhone, Android Tablet, Mac and Windows apps. The best Callzo alternative is Rakuten Viber, which is free. Other great sites and apps similar to Callzo are Google Voice and Telzio.
Offers secure messaging with end-to-end encryption, unlimited free calls, group chats for up to 250 members, rich media sharing, emoji reactions, AR lenses, self-destruct messages, affordable international calls, community channels, and robust privacy across devices.
Google Voice gives you one number for all your phones, voicemail organized in an email format, free US long distance calls, low rates on international calls, and many free calling features, including transcripts, call blocking, call screening, conference calling, SMS, and more.
Telzio powers billions of conversations globally with our best-in-class cloud phone service. We have built Telzio from the ground up to be user-friendly, reliable, and the highest quality service in the market.
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