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Audio Video | Wireless | Cameras | Intercoms | Nurse Call System | Audio System

Pro 700 Series  |  RM5000 Series  901 Exchange

Ring-Master Communication & Security Systems


The Ring-Master story dates back to 1951 when the founder, Gustav A. Ring, launched his newly designed intercom system. Always an innovator, he was the first intercom manufacturer to provide solid state systems (1967) and integrated circuits based systems (1977). The company was among the pioneers in Norwegian communication technology exports, and set up first subsidiaries abroad as far back as in the 1960’s.

The subsidiaries secured footholds and market shares both in Europe and USA. Since 1997, when RingCom merged with Stentofon ASA, another Norwegian major communication company, the Ring-Master brand is a part of the Communications- and Security Systems Division in STENTO ASA. Since Ring-Master’s conception in 1951, the company has been among the leaders in the internal communication industry. The owners, employees and distributors are working together to maintain and develop the position as an industry leader.



The Ring-Master product is represented in more than 30 countries all over the world and more than 75 % of its turnover is exported. The Ring-Master solutions meet customers’ needs for integrated communication and security solutions and our customers work in such use-intensive areas as industry, transportation, health institutions, offices, police & prisons, banks & financial institutions, security & safety, where quick and dependable communication is important for safeguarding life, health and material values.



Ring-Master has some of the world’s largest internal communication systems installed, including Rockefeller Centre, Empire State Building, Norges Bank, numerous hospitals, airports and other major installation.

-  Communication in office buildings..
-  Communication in health care institutions..
-  Communication in industrial and off-shore

-  Communication in security applications..
-  Communication for banks and financial

-  Communication, anywhere..


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