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

Error 30005: Unknown subscriber.

Error 30005: Unknown subscriber.

The recipient’s SIM might be inactive or disconnected. Verify their number before resending your message.

Related QNAs

I can’t make international calls from the app.

Before placing calls:

  • Check that you have active calling credits.
  • Make sure international calling is enabled on your plan.
  • Some countries may be temporarily restricted — check the supported destinations list.

I entered the wrong email during signup what do i do

No worries — our team can fix that for you.

  • Send an email to support@callmama.com with:
    • Your registered phone number
    • The correct email address you want to use

 We’ll manually update your account in a few hours.

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