The emergency services network (ESN) will provide the next generation integrated critical voice and broadband data services for the 3 emergency services and over 300 other public safety organisations. A single, cost effective, integrated and modern emergency service communications network will support communication under even the most challenging circumstances, providing critical voice and broadband data services that are: enhanced: to provide integrated broadband data services flexible: to better match and be responsive to user needs affordable: to address financial pressures on central and user budgets