We understand adding a customized caller ID to your lines is a great way to connect with your clients. Sadly, caller ID can't be assigned to Toll-Free numbers.
Toll-Free numbers were initially designed to exclusively receive calls and not make calls. Given this, CNAM does not maintain listings for Toll-Free numbers for OpenPhone to update.
When calling your clients, we will instead display your Toll-Tree number to help them recognize the incoming caller.