Surface Duo 2 - Server Error when trying to make calls

My surface duo 2 (TMobile) will not make or receive calls when connected to 5G or LTE, but calls do work on 3G. However, I am able to connect to the internet and send / receive text messages on 5G and LTE.

When trying to make a call on 5G or LTE, I get an error message that says "Server error. Try again later."

I have performed a factory reset and installed a new TMobile SIM card, but neither has solved the issue

A previous poster mentioned that installing a SIM card from a different network provider (i.e., Verizon) and then going back to the TMobile SIM worked for them, but I do not know of anyone around me that has a different provider.

Is there anything I can do short of finding someone who has a different provider's SIM to solve this issue?

Thanks in advance.