Contact | RRB Secretariat Executive SecretaryMario Maniewicz mario.maniewicz@itu.int +41 22 730 58 00 Meeting SecretaryDavid Botha david.botha@itu.int +41 22 730 55 48 Administrative AssistantKarine Gozal karine.gozal@itu.int +41 22 730 60 17 BR Mail Registry brmail@itu.int +41 22 730 57 85