Net result of this action for most people: When traveling internationally, I would use this feature to call family in the US - for free (it only uses data). Now I can't do this anymore, as it will default to using cell networks (not data).

>New telecommunications regulations are being introduced in the EU and U.S. beginning in 2021. To comply with these new regulations, we need to remove the call phones feature in Hangouts. [1]

It appears that the change is due to new regulations?

[1]: https://blog.google/products/workspace/latest-google-hangout...