I received the Samsung Tab S6 and I followed the instructions for the Tablet to enable "Calls and Text on other devices" but there is no option for my Note 9.
Samsungs U.S. site shows the U.S. Note 9 is compatible to use this feature but it is not present on the Note 9.
Thanks for reaching out.
We have escalated this to our engineers regarding this. Call and text from other devices are not yet available for the Note 9 yet. We will reach back out to you once we have an update.