The El Segundo Public Safety Communications Center is a branch of the Support Service Division. The communications center operates the 9-1-1 and 7-digit systems for telephonic requests for emergency and non-emergency police and fire services. It is responsible for monitoring police and fire department radio frequencies on a 24-hour basis; dispatching all mobile police and fire units; maintaining and operating 24-hour tape recorders; relaying requests from field units to the appropriate agency or department unit; maintaining contact with other law enforcement agencies; and, conducting communications-related analytical surveys as required.