To see what caller ID information is coming into your OBI110, try looking at the Call History to see how the numbers appear to your OBi.
1. If you do not know the IP address of your OBi, find IP address:
from your phone dial ***1 and listen for the IP address. Write it
down.
2. Enter the IP address that you wrote down into the address box on your
browser. If you don't know what a browser is, that means Internet Explorer,
Chrome or Safari. It could also mean Firefox, etc.
Be prepared to enter the password for your OBi. The username is admin.