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

Absolutely — you can tag numbers as Personal, Business, or International to organize your communication better.

Restart your device and reopen the app. If it still hangs, reinstall CallMama to reset all cached files.

For security and fraud prevention, transfers between accounts aren’t allowed. You can, however, add multiple numbers under the same verified account.

Some international carriers don’t support Unicode characters. Use plain text for guaranteed delivery.

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