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Red Northern Telecom Contempra with rotary dial and modular adapter
we have these made by ITT
or anti-sidetone versions of the A
Original keys are supplied
Ring Booster shsdchildproduct Red Northern Telecom Contempra withRG 10A is a ring booster designed to increase ringing power of an existing telephone line, PABX extension, ISDN Terminal Adapter, or any other telecom device which provides ringing. It duplicates the incoming ring frequency and cadence allowing it to be compatible with custom ringing features. The RG 10A is capable of ringing 15 std (1REN) phones.
US$ 16.99
US$ 15.99
