WiFi calling is convenient but has downsides. One major disadvantage of WiFi calling https://www.uctel.co.uk/blog/disadvantages-of-wi-fi-calling-in-the-uk-why-it-cant-replace-mobile-connection is unreliable connections, especially in areas with poor signal strength, causing dropped calls. Security concerns also arise, as data transmitted over WiFi can be vulnerable to hacking compared to traditional networks.