Zoom Telephonics was founded in 1977 as a home networking product manufacturer, headquartered in Boston, Massachusetts. The company was founded by Frank B. Manning and Bruce Kramer, two fellow roommates and graduates of the Massachusetts Institute of Technology (MIT) who had known each other since the late 1960s. The company's first product was a modification kit for telephones that turned off the phone's ringer with the flick of a switch.
Zoom Telephonics originated in 1977 as a manufacturer of home networking products, headquartered in Boston, Massachusetts. The firm was established by Frank B. Manning and Bruce Kramer, both MIT graduates who had been roommates since the late 1960s. Their initial creation involved an adapter kit for telephones that silenced the ringer with a switch.