If you add a number to the blacklist, will SMS messages come to WhatsApp - briefly?
No, adding a number to your device's blacklist will not block SMS messages from being received on WhatsApp. The blacklist primarily affects phone calls and texts sent through the default messaging app.
If you add a number to the blacklist, will SMS messages come to WhatsApp - in detail?
If you add a number to your phone's blacklist, it will not affect the delivery of SMS messages to WhatsApp. The blacklist feature on smartphones is designed specifically for calls and, in some cases, traditional text messaging (SMS). When you block a contact via this method, you are essentially preventing that number from reaching your device through voice or standard texting services.
WhatsApp operates independently of the native phone app and SMS system. It uses its own protocols to send and receive messages, which are encrypted end-to-end for security purposes. Adding a number to your blacklist does not interfere with WhatsApp's functionality because WhatsApp relies on an internet connection (Wi-Fi or mobile data) rather than the cellular network used by SMS and calls.
Therefore, if someone sends you an SMS message while their number is blocked on your phone, it will still be delivered to WhatsApp as long as they are a contact in your WhatsApp list and have not been blocked within the WhatsApp application itself. It is important to note that blocking a number within WhatsApp will prevent messages from that contact from appearing in your WhatsApp chat window.
In summary, adding a number to your phone's blacklist does not impact the receipt of SMS messages through WhatsApp. The two systems operate independently, ensuring that your communication through WhatsApp remains unaffected by traditional call and SMS blocking features on your device.