The four major cellular carriers support Wi-Fi calling, below are links to cellular carrier Wi-Fi calling FAQs. Please follow the steps to enable Wi-Fi calling on your carrier supported smartphones.  

1. Verizon Wireless: https://www.verizonwireless.com/support/wifi-calling-faqs/
2. ATT Mobility: https://www.att.com/shop/wireless/features/wifi-calling.html
3. Sprint: https://www.sprint.com/en/support/solutions/services/faqs-about-wi-fi-calling.html
4. T-Mobile: https://support.t-mobile.com/docs/DOC-1680

 If you have already enabled Wi-Fi calling on your devices then simply connect to the University's Wi-Fi, your device will automatically switch calling functionality to the strongest signal available.

Note: Cellular carrier use of Wi-Fi calling while roaming in building or between floors is not just dependent on Wi-Fi coverage but the cellular carrier technology to maintain calls as your devices jumps from one Wi-Fi AP to the other. The same is true for Wi-Fi AP to a cellular tower. Your calling experience will vary.