Is WiFi calling supported on ios 8 on iPhone 5? I have an iPhone 5, and I don't have good reception at home, so I was hoping to use wifi calling after upgrading to ios 8, but I can't find an option to enable it.  BTW I'm with T-Mobile carrier.
As of right now, it is only available on 5c, 5s, and 6.

Whether or not this is intentional is unsure since t-mobile themselves thought it would be available for the 5 as well.  We will have to wait for some kind of update for iPhone 5