If WhatsApp is blocked, will calls go through - briefly?
If WhatsApp is blocked, traditional voice and video calls through the app will not go through. However, WhatsApp's end-to-end encryption ensures that messages can still be sent securely until the block is lifted.
If WhatsApp is blocked, will calls go through - in detail?
If WhatsApp is blocked, whether or not calls can go through depends on the nature of the block and the specific technologies involved. A block on WhatsApp typically refers to restrictions imposed by internet service providers (ISPs) or governments that prevent access to the WhatsApp application itself.
Firstly, if an ISP blocks WhatsApp by preventing access to its servers, this action primarily affects data-based communications such as messages and media sharing within the app. In this case, voice calls using WhatsApp's VoIP (Voice over Internet Protocol) feature would also be disrupted because they rely on the same data connection. However, traditional phone calls made through a carrier network would not be affected by an ISP block on WhatsApp.
Secondly, if a government imposes a block on WhatsApp at the national level, it usually involves more comprehensive measures such as blocking access to WhatsApp's domain name servers (DNS) or IP addresses. This type of block can also impact voice calls made through WhatsApp, as the app would be unable to establish a connection. Again, traditional phone calls routed through mobile network operators are not affected by such blocks because they operate on different infrastructure.
In summary, if WhatsApp is blocked, voice calls facilitated through the app will likely be disrupted due to the inability of the application to connect to its servers or access necessary internet services. However, traditional phone calls made via standard mobile networks are not affected by blocks on WhatsApp and should continue to function normally.