LIDB

LIDB stands for Line Information Database. It's a set of carrier-run lookup systems that store information tied to phone numbers — most importantly for a call center, the name that's associated with each number. When you see a company or person's name pop up under an incoming caller ID on your own phone, that name very likely came from a LIDB lookup that happened the instant the call arrived.

This is closely tied to cnam, the caller-name service. Here's the part that trips people up: when you place an outbound call, your number — the cid you send out — travels with the call, but the name does not. The receiving phone company takes your number and looks it up in a LIDB to find the name to display. So the name your prospects see on their screen is whatever the database has on file for your number, not a label you attach to each call in real time from VICIdial.

For a call center, the practical takeaway is that you don't control the displayed name directly from the dialer. You can set the cid number you broadcast on a call, but the name that shows up comes from how your did numbers are registered in these databases. If the wrong name appears — or a stale one from a previous owner of the number — that's a registration issue, and the place to fix it is with whoever owns the registration for that number, not in your campaign settings.

When you buy numbers, it's worth asking your carrier up front how they handle name registration: can they set the displayed name for the numbers on your trunk, how long the change takes to propagate, and whether there's a fee. Getting this right helps your calls look legitimate instead of showing up blank or with a mismatched name, and that has a real effect on how many people pick up. A number that displays a clean, expected name is far easier to get answered than one that shows nothing at all.