Please ensure your plan includes inbound SMS. Go to Settings → Features and verify that SMS reception is enabled for your number.
The call will disconnect immediately when your balance reaches zero. Enable auto-recharge to prevent interruptions.
Your app cache may have been cleared automatically. Re-sync your inbox by refreshing or logging out and back in.
Fluctuations happen if your internet bandwidth changes during the call. Close background apps that use data for better voice consistency.
Some international carriers don’t support Unicode characters. Use plain text for guaranteed delivery.
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