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

The app says ‘Invalid Number’.

Always include the correct country code (e.g., +1 for US, +44 for UK). Re-enter the number in international format before redialing.

Related QNAs

My sent messages disappeared randomly.

Your app cache may have been cleared automatically. Re-sync your inbox by refreshing or logging out and back in.

Can I attach media files or images to SMS?

Not yet — CallMama currently supports text-only messages. MMS functionality will be available in future updates.

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.

Can I enable automatic top-up?

Yes, in Billing Settings, toggle “Auto-Recharge” and set your preferred threshold amount.

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