Duo Call - Dual Global Calling
Duo Call - Dual Global Calling App Info
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App Name
Duo Call - Dual Global Calling
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Price
Free
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Developer
Duo Call Studio
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Category
Communication -
Updated
2025-12-26
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Version
2.5.10
Frequently Asked Questions
How do I start making free international calls with Duo Call?
Download the app, sign up, and earn or purchase credits. Then, select a contact and tap the call button to start your free or low-cost international call.
Do I need a phone number to use Duo Call?
No, Duo Call operates over Wi-Fi or cellular data without requiring a phone number or SIM card. Just install and start calling.
How can I earn more credits within the app?
You can earn credits by viewing ads, playing mini-games, completing tasks, or participating in daily spins. Credits can then be used for calls.
Can I make group calls with Duo Call?
Yes, the app supports 8-way conference calls with high-quality audio and live video for group conversations.
Are my calls private and secure?
Yes, Duo Call uses end-to-end encryption, ensuring your calls are private and protected from unauthorized access.
How do I make international calls to landlines or mobiles?
Select the contact, ensure you have enough credits, and tap the call icon. Calls are free if you have credits; otherwise, purchase more within the app.
What should I do if I cannot make calls even with credits?
Check your internet connection, ensure the app has necessary permissions, and verify your credits are sufficient. Restart the app if needed.
Are there any subscription options or charges for using Duo Call?
Duo Call mainly offers free credits for calls. Credits can also be purchased directly in the app via Settings > Recharge, but no subscription is required.
How do I recharge or buy more credits?
Go to Settings > Recharge, and select your preferred payment method to purchase additional credits quickly and securely.
How can I troubleshoot call quality issues?
Ensure a stable internet connection, move closer to Wi-Fi router or switch to a stronger network, and restart the app if needed.