From 1990–95 Sammoun served as Vice President of Videotron in Montreal, after which he founded his own company SHS Technology.[5] SHS was a leading analyst in the technology that operates the Broadband over power line, which transmits internet signals to and from subscribers of electricity companies. While at Videotron he and his colleagues, as described in their 1990 patent, invented a "cable communication system comprising a bidirectional transmission network connected to the head end for transmitting signals downstream from the head end to a plurality of subscriber stations, and for transmitting data signals upstream to the Cable provider". Along with others, this system forms the basic technology for addressing data traveling over the internet.