Bell’s update adds Voice & Data as an option when connected to LTE networks, in other words, allowing users to make calls and use data simultaneously over data. Previously, voice calls would default to HSPA, when using the data network.
In other words, VoLTE has arrived for iPhone users on Bell, to allow wideband, high-quality phone calls, which at this time may be limited to iPhone 6 users or newer (what are you guys seeing?).
How to enable VoLTE? Just go to Settings > Cellular > Enable LTE > ‘Voice & Data’, as seen below:
Rogers launched VoLTE last fall, limited to iPhone 6s and iPhone 6s Plus users.