ts NICE, CISCO, American Dynamics, Bosch, Pelco, Panasonic, Vicon and others. NVR CONTROL SYSTEMS-SIGNET TECHNOLOGIES, INC. represents NICE, CISCO, ONSSI, Pelco, and a variety of other vendors. TMERGENCY COMMUNICATION EOIIIPMENT- Commend, Stentofon and Talk-A-Phone products are our primary vendors f