FREE Global Calls

Unlimited calling to 200+ countries.

Why Use Duo Voice

Free international calls

Enjoy high quality free calls to landline and mobile to most countries and areas in the world.

High quality calls

Duo Voice can guarantee excellent call quality. Our system will always search the best telephone line at your nearby region.

Unlimited call credits

Various free call credit offers: watch videos, complete tasks, invite friends and more.

Call any mobile or landline

Your friends and family don't need the app for you to call them. Duo Voice just works.

Contact Us

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