WTTO is a subsidiary of Wharf T&T, a leading ICT service provider with over HK$5 billion invested in its own telecommunications network infrastructure in Hong Kong. Wharf T&T partners with all Mainland international carriers to enable cross-border data transmission solutions that only a one-stop shop ICT service provider can provide. Riding on the robust network connectivity of Wharf T&T and professional IT service capability of COL, WTTO is able to provide custom-made solutions to business clients.