Caller ID

Caller ID is a 3 part puzzle:

National Database (ring-u does this part for you)

Apple Database

Google Database

It is VITAL that you complete the your Apple and Google business listings or your Caller ID will not function/display correctly for all parties.
Make sure your business listings include all the phone numbers on your Dashboard.
The ring-u administered Caller ID can be edited by you at Numbers
Links for Apple and Google business listings:
Apple Business Connect
Google Business Profile

Also, go to these pages and file your numbers as not spam. This is really important for any number that will call cell phones.
T-Mobile
Verizon
AT&T