Illinois License Number 127-001032		Florida License Number EG13000241

Intercom Systems CASS Security Services installs intercom systems in schools, health care facilities, and other commercial or residential situations. We use Audio-Video, or just Audio systems. We install AIPhone, Music & Sound, Viking, Nutone and any other major brand of system. The Viking system can be hooked up to most existing phone systems, so you can answer the door from any phone in your location. With access control you can even disengage the door lock from the same phone or intercom. 800-576-0252