Cambridge Positioning Systems Limited (CPS), a provider of mobile location technology, selected Edelman as its agency of record in the Americas, following a competitive review. CPS' E-OTD (Enhanced
Observed Time Difference) technology enables wireless providers and public safety officials to locate an incoming wireless 911 call to 50 meters. CPS is the only independent E-OTD technology supplier.
E-OTD has been chosen by all major GSM mobile communications operators, such as AT&T Wireless, Cingular and VoiceStream, as their technology of choice for compliance with the impending US emergency
services mandate from the Federal Communications Commission (FCC), known as E911.
