8/F CHINA HONG KONG TWR, 8-12 HENNESSY RD, Wan Chai, Hong Kong

Calls drop when I switch to another app.

Enable background running permission. Some phones suspend VoIP when multitasking — allow CallMama to run in background.

Related QNAs

Can I receive OTPs on virtual numbers?

Yes, most online services support CallMama numbers. However, some banks block VoIP-based OTPs for security reasons.

There’s a delay before I hear the person.

This delay is normal for long-distance calls with higher routing latency. It’s reduced when using a faster 4G or 5G network.

I topped up, but calls still don’t go through.

Sometimes wallet updates take a minute. Refresh or restart the app to reload your balance.

My voicemail isn’t working.

Make sure voicemail is enabled under Call Features. If you still can’t access it, refresh your account or reinstall the app.

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