Rohill through Grupo Ezentis and Grupo CYS to modernize TETRA communication networks at nine AENA airports
Rohill through Grupo Ezentis and Grupo CYS to modernize TETRA communication networks at nine AENA airports Hoogeveen / Madrid, July 28, 2026 – Grupo Ezentis today announced that its subsidiary Grupo Comunicaciones y Sonido (Grupo CYS) has been awarded the contract by AENA to upgrade the TETRA communication networks serving nine Spanish airports as part […]