No reliable call service for 2 months. Model Redmi note 10s. Bought 3 years ago outside of Canada. I see VoLTE.Dont know how to turn it on. Network bands:2G: GSM B2, B3, B5, B83G: WCDMA B1, B5, B84G: LTE FDD B1, B3, B5, B84G: LTE TDD B40, B41CA:DL: ...