Multiple phones and tablets on multiple WiFi connections. iPads, iPhones, Android phone (Pixel4), corporate WiFi, residential WiFi, even OnStar WiFi. Laptop calling works fine on all connections, mobile app calling always fails until WiFi is disabled...

I am also running into this with Broadsoft, WebEx Calling and different WiFi connections via the mobile app on iOS, iPadOS, and Android. The same WiFi networks allow a Windows laptop to use the client successfully with no issues, but the mobile apps ...