That country may not support SMS from VoIP numbers. Please check the list of supported destinations before sending.
Fluctuations happen if your internet bandwidth changes during the call. Close background apps that use data for better voice consistency.
Yes, enable Auto Retry Failed SMS under settings. The app will retry up to three times before marking it failed.
Some banks or websites restrict OTP delivery to VoIP numbers. If possible, use an alternate number or contact the provider for manual verification.
Please ensure your plan includes inbound SMS. Go to Settings → Features and verify that SMS reception is enabled for your number.
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