Each minute of HD voice call uses about 1MB of data. Use Wi-Fi when available to avoid mobile data charges.
Avoid closing the screen during checkout. It may take up to two minutes for confirmation if it’s still stuck, check your internet and retry the purchase.
If payment renewal fails or balance remains insufficient, the number may deactivate automatically. Renew promptly to restore service.
Yes — you can log in with the same credentials on several devices. Just note that active calls work on one device at a time.
Close other background apps to free memory. Low RAM or outdated app versions can cause lag during input.
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