Why doesn't my Wifi calling work at my job?

[Android Central Question]

Verizon troubleshot the phone, replaced it, and reset it and it still doesn't work at my job. I work in a hospital in an office with no windows. Now my Samsung note 4 worked perfectly but this phone doesn't. Any specifics I should be looking at?????? Please help. Needs to rely on WiFi calling at work. Love the phone

 

[ManiacJoe]

Does the wifi calling work on your home wifi or other wifi?