Why don't my international calling work.

Hello Dlee,

Check out this article for enabling and disabling international calling on your account:

https://support.zoom.com/hc/en/article?id=zm_kb&sysparm_article=KB0065340

For SMS, unfortunately we don't control the 10DLC registration process. https://support.zoom.com/hc/en/article?id=zm_kb&sysparm_article=KB0059336

Hope that helps and please make sure to mark the solution as accepted if this information is what you needed.

Thanks! Rick