(From left to right) Microsoft Hong Kong and Macau General Manager Cally Chan, Microsoft Greater China Region Chairman and CEO Alain Crozier, HKBN Co-Owner and Executive Vice-chairman William Yeung, and HKBN Co-Owner and Chief Operating Officer -- Enterprise Solutions Billy Yeung celebrate the cooperation between HKBN and Microsoft to pioneer voice and video-conferencing enabled Microsoft 365 and Office 365 solutions in Hong Kong.