Operators. Manufacturers. ITU-D Headquarters. D Sector Membership Portal. The portal’s aim is to showcase information on ITU–D Sector Membership and to strengthen communication between them and the Telecommunication Development Bureau (BDT). It provides them with an invaluable means to enhance their visibility and take advantage of networking opportunities. Besides presenting an external source of information, the portal offers a useful new tool for consulting data on Sector Members. The logo of each entity is displayed, linking to a short profile and the Sector Member’s own website. BDT Membership.