caller identification service
Defined in 1 dictionary — U.S. Code
United States Code
47 U.S.C. § 227 — as used in this section (2 versions over time)
The term "caller identification service" means any service or device designed to provide the user of the service or device with the telephone number of, or other information regarding the origination of, a call made using a voice service or a text message sent using a text messaging service. Such term includes automatic number identification services.