AccuCom Wireless Services, Inc.

Bell Atlantic Enterprises International

BellSouth Corporation

Broad Cloud Communications

Cambridge Positioning Systems

Cellular Technical Services, Inc.

Cellular Telecommunications Internet Assn.

Cingular Wireless

CommSite International

Global Information Infrastructure Commission

GSM Association

GSM North America

International Institute of Wireless Communications

InphoMatch Inc.

Invertix Corporation

Mobile Systems International

MTN of South Africa

National Telephone Cooperative Association

NetCom Consultants

North American GSM Alliance LLC

Omnipoint Technologies

Praesidium

Re-Route.Com

Sprint PCS

SCT/Raychem

SiteSafe Inc.

University of Oklahoma Center for the Study of
Electromagnetic Compatibility