After you have activated Caller ID in your Feature Set, you have to add the list of numbers for which the Feature Set will be applicable.
Click on Add Numbers and upload the numbers that you want to add for the feature set in .CSV format.
You can click on "Download sample", if you need a reference on the format in which the numbers need to be uploaded.
Ensure that you use the right format mentioned in the sample CSV and don't miss out on country code (91) for India.
Click on “Publish” after successfully adding numbers to list your numbers with the configured feature set.