Hi,
This is my understanding of this project:
From the list of phone numbers you have we have to determine which one are active or not.
Status of the phone number can be detected using the API that you have attached in Code.png.
The deliverable of this project will be the list of phone number and VANID, updated with status of a phone number.
I should be able to have this complete for you today.
Thanks,
Mani