Only phones supported for wifi-calling currently are the newer iPhones only.
iPhone SE iPhone 6/6S iPhone 6/6S Plus
iPhone 7 iPhone 7 Plus
NO wifi calling on Android devices at this time.
Update (for those unaware of newly available phones):
- LG G6, LG V30, Samsung S8, Samsung S8+, Samsung Note8 on Android 7.0 and above. Compatible with postpaid accounts only. An LTE SIM card is required and phone has to come from Telus (or have Telus CSC).
- iPhone 6 or newer (including SE) on iOS 10.2 and above. Compatible with postpaid accounts only. An LTE SIM card is required.