Check the compatibility of your smartphone model with Hutch VoLTE enabled device.
Upgraded the OS of the handset with the latest software provided by your handset manufacturer.
You have to have a Hutch 4G ready SIM. (To check dial *324#.
If you don’t have a 4G ready SIM visit the link to get it delivered at your door-step: https://hutch.lk/sim-replacement/
Activate your VoLTE switch in the phone.
Android: Setting > Connections > Mobile networks > Enable Volte calls
For users with Dual-SIM handsets, Hutch SIM should be inserted in the SIM slot with data capability and
network mode as “4G/3G/2G (Auto)”.
Setting > Cellular > Cellular Data options > Voice and Data > enable Volte