Anyone know how to change the voicemail greeting back to the standard default that just announces the number?
Great question! You can use these steps to change your greeting. https://support.t-mobile.com/docs/DOC-1171#secondheading
There will be an option to play your number as your greeting.
I have followed the steps in the link that you sent, but do not get the option to play my number as my greeting. How do I get back to that?
Retrieving data ...
Manage your T-Mobile account
Use the T-Mobile App or your My T-Mobile account
We're here to help