| Telecommunication Industry Association (TIA) TIA Whitepaper Read on ESN exhaust and the need to migrate to MEIDs. An electronic serial number (ESN) is the unique identification number embedded or inscribed on the microchip in a wireless phone by the manufacturer. Each time a call is placed, the ESN is automatically transmitted to the base station so the wireless carrier's mobile switching office can check the call's validity. TIA Releases . TIA has published its 2007 Technology and Po.. |