Unable to activate FaceTime on an iPhone on wifi

Hello webfuzion.

Welcome to Apple Support Communities. I understand that you’re unable to activate FaceTime on your iPhone using Wi-Fi but not using cellular connection. I’m happy to help.

Are you saying that you’re unable to activate FaceTime? Do you get an error message? If so, what error do you receive?

FaceTime is not available in all countries. FaceTime requires a messaging plan on your account to activate.

Please try the steps here: If you get an error when trying to activate iMessage or FaceTime - Apple Support

Take care.

Welcome back webfuzion.

You are welcome. You are able to use FaceTime on an iPhone or iPad using Wi-Fi or cellular connection. 

“You can use FaceTime on any of these devices on Wi-Fi: iPhone 4 or later, iPad Pro (all models), iPad 2 or later, iPad mini (all models), and iPod touch 4th generation or later (only iPod touch 5th generation or later support FaceTime audio calling).” You can find more information on FaceTime here: Use FaceTime with your iPhone, iPad, or iPod touch - Apple Support

Take care.

Hi webfuzion.

You are able to use the iPhone connected to Wi-Fi with your Apple ID for FaceTime using the previously provided link. If you want to use your phone number with FaceTime, you will need to activate the device with your wireless carrier. If you need further assistance, please contact Apple Support here: Get Support

Cheers.

Hello webfuzion.

You're welcome.

Cheers.