WhatsApp now allows users to hide their IP addresses during calls by relaying calls through WhatsApp's servers to obfuscate their location. This new privacy feature addresses concerns about revealing IP addresses, which can sometimes expose information such as geographical location or internet provider. While enabling the feature, users should be aware that call quality may be reduced.

https://www.macrumors.com/2023/11/08/whatsapp-hide-your-ip-address-during-calls/