Spirent Communications plc introduces a solution to test Assisted GLONASS (A-GLONASS) capability on UMTS mobile devices and chipsets. Supported on Spirent's 8100 UMTS Location Technology Solution (ULTS), the new A-GLONASS testing capability gives early adopters of A-GLONASS a competitive edge by enabling the delivery of better-performing devices and improved user experiences. The addition of A-GLONASS to the list of available LBS enabling technologies such as GPS is set to make a major impact on mobile device positioning in 2010 and beyond. GLONASS is a Russian navigation satellite system with recently-formalized open civilian access. Using both GPS and GLONASS offers a mobile device receiver almost twice the number of usable satellites in the sky compared with GPS alone. Providing assistance data over the cellular network (A-GLONASS) further improves the speed and reliability of position fixes, in the same way as A-GPS.