It is not listed as compatible on their website which is confusing. I have mint, and if the phone supports wifi calling, Mint could use it. It says it is compatible on T-Mobile, which is what Mint runs on. Hit up Mint's support, I've always had great luck with them in the past.
(you may need to scroll all the way to the bottom of this page, click the See Full Specs link, then at the bottom it lists connectivity compatibility with various carriers.
https://www.motorola.com/us/smartph...vqTND8gRhoCaWAQAvD_BwE&gclsrc=aw.ds&skuId=819