Participation Invitation letters Registration Official Invitation letter by Host Country Clearance letter by Ministry of External Affairs Clearance letter by the Ministry of Home Affairs Fellowships Booking rooms at WTSA-24 Documents Delegate Training Electronic tools Practical Information Related Events Bookshop Badge Collection Opening hours of badging desks Booking rooms at WTSA-24 Candidates for Chairs and Vice-Chairs Captioning archive (An ITU user account with TIES access is required.) Documents Delegate training Electronic Tools Floor plans Presentations of the ITU-T Study Group Chairs Webcast Announcements Practical Information Frequently Asked Questions Greening WTSA-24 Related Events Bookshop Invitation letters to WTSA-24 and GSS-24 List of Registered Participants TIES restricted