21WR2of6WebConferencingServiceProvidersinChina:ACompetitiveAnalysisMay20101••1143of6WebConferencingServiceProvidersinChina:ACompetitiveAnalysisMay20103GVerizon4of6WebConferencingServiceProvidersinChina:ACompetitiveAnalysisMay20105of6WebConferencingServiceProvidersinChina:ACompetitiveAnalysisMay20102::=,=,and=•••6of6WebConferencingServiceProvidersinChina:ACompetitiveAnalysisMay2010