See also: BT/Nortel Conduct UMTS Trials Universal Wireless Consortium UMTS Key: 2+ = GSM Phase 2+ HSCSD = High Speed Circiut Switched Data (14.4kbps * n) GPRS = General Packet Radio System (up to 114 kbps) EDGE = Enhanced Data GSM Environment (up to 560 kbps) UMTS = Universal Mobile Telephone Service (up to 2 Mbps) See also: BT/Nortel Conduct UMTS Trials Universal Wireless Consortium UMTS GPRS Graphic Copyright LEON PERLMAN