communication equipment, alternating current (ac) to direct current (dc) converters, loop converters, call confirmation paging systems, direct current (dc) power supplies, uninterruptible power supplies (ups), direct current (dc) uninterruptible power supplies (ups), power supplies, telecommunications ring tone generators, ringing generators, telephone switching and line simulators, telecommunication systems or equipment, transfer units available from kapes, gordon inc based in skokie, il. click the links below to visit our website or contact us via our profile page.