Can I use VoWiFi while roaming? Yoodo Support June 27, 2022 10:00 Updated VoWiFi whilst roaming is currently not available. Related articles Why am I not able to make calls via VoWiFi even though I am connected to a WiFi network? Recently I switched to an eligible device for VoWiFi. However, I realized that VoWiFi service on the smartphone is not available. What should I do? How do I activate VoWiFi? Do I need to call Yoodo to activate VoWiFi? Can I send and receive SMSes over the WiFi network? If my line was barred due to zero balance, can I still enjoy VoWiFi? Comments 0 comments Please sign in to leave a comment.