Yes — you can log in with the same credentials on several devices. Just note that active calls work on one device at a time.
Go to call history, tap and hold the contact, then select “Block Number”. You won’t receive further calls from them.
Sometimes, specific country numbers may be temporarily out of stock.
Please ensure your plan includes inbound SMS. Go to Settings → Features and verify that SMS reception is enabled for your number.
Avoid tapping the “Send” button multiple times if your network is slow. The system automatically retries if the first attempt delays.
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