Globecom 2006, San Francisco
ICC 2006, Istanbul
Globecom 2005, St. Louis
ICC 2005, Seoul
Globecom 2004, Dallas
ICC 2004, Paris
Globecom 2003, San Francisco
ICC 2003, Anchorage
Globecom 2002, Taipei
ICC 2002, New York
Globecom 2001, San Antonio
ICC 2001, Helsinki
GLOBECOM 2000, San Francisco
ICC 2000, New Orleans
GLOBECOM 1999, Rio de Janiero
ICC 1099, Vancouver
GLOBECOM 1998, Sydney
ICC 1998, Atlanta
GLOBECOM 1997, Phoenix
ICC 1997, Montreal
GLOBECOM 1996, London
ICC 1996, Dallas
GLOBECOM 1995, Singapore
ICC 1995, Seattle