OneAPI, as defined by the telecom industry—led by the Global System for Mobile Communications Association (GSMA) and the Open Mobile Alliance (OMA)—is a set of standardized and lightweight Web-friendly application programming interface (API) for communications service providers (CSPs) to use to expose their networks. Building on OneAPI version 2.0 specifications, the current OneAPI specifications, which are at version 3 beta (published from February to April 2012), add the following capabilities: Femto Zonal Presence, Customer Profile, and Anonymous Customer Reference.