GSM Continues to Drive Mobile Infrastructure Market in Fourth Quarter of 2006

Market Dominated by Ericsson and Nokia-Siemens

Redwood City, Calif. – February 20, 2007 – Dell’Oro Group, the trusted source for market information about the networking and telecommunications industries, reported today that the GSM- based mobility infrastructure market grew 17 percent sequentially in the fourth quarter of 2006. The report indicates GSM remains a critical market for equipment vendors as the transition from GSM to WCDMA has been slow.

“Befitting a large and stagnant market, GSM infrastructure market is becoming increasingly concentrated with two vendors accounting for over 70 percent of the market,” said Greg Collins, Vice President of Mobility Infrastructure Research. “In 2006, Ericsson’s share of the GSM market exceeded 40 percent and Nokia-Siemens’ combination accounted for more than 30 percent of the GSM market,” he added.

About the Report

The Dell’Oro Group Mobility Infrastructure Quarterly Report offers complete, in-depth coverage of the market with tables covering manufacturers’ revenue, average selling prices, transceiver or RF carrier shipments, and unit shipments for base station controllers, base transceiver stations, and mobile switching centers for GSM/GPRS/EDGE, CDMA, and WCDMA. To purchase this report, call Margaret Miles at +1.650.622.9400 x225 Margaret@DellOro.com.

About Dell’Oro Group

As the trusted source for market information about the networking and telecommunications industries, Dell’Oro Group provides in-depth, objective research and analysis that enables component manufacturers, equipment vendors, and investment firms to make fact-based, strategic decisions. For more information, contact Dell’Oro Group at +1.650.622.9400 or visit www.DellOro.com.