This happens when your balance is zero or the feature isn’t activated. Add funds and refresh the app to unlock calling options.
Ensure your account has SMS credits and a good internet connection.
Some countries may be temporarily under maintenance or not yet supported for outbound calls. Check back later or contact support for updates.
Ensure you’ve entered both a message body and recipient number. Blank fields can cause this error.
Battery optimization or data saver mode can interrupt ongoing VoIP calls. Add CallMama to your phone’s “Unrestricted Apps” list.
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