Contact us at (212)262-2820 for service and installation, maintenance and upgrade of all types of intercoms including video intercoms and audio intercoms, iphone intercom systems, IP intercom systems and security cameras for clients in New York City. Douglas Security and Intercom Systems, Inc. 1541 E 46th Street, Brooklyn,NY 11234 PHone: 2122622820 Website: www.douglassystem.com Email: douglassystem@yahoo.com