smrtPhone offers verified voice services to U.S. clients through STIR/SHAKEN, which is a certified Caller ID product.
All U.S. based smrtPhone customers will have all of their U.S. 10-digit local phone numbers enrolled in STIR/SHAKEN to become a verified caller as soon as your Trust Center business profile is verified. It will take up to 48 hours for all of your phone numbers to be certified to your profile.
The process will be automatic and completely free. You don't have to do anything, except make sure your profile is complete, accurate, and approved.