Telephone Systems and Services All Locations... Potsdam Area go Results Found: 2 Button group with nested dropdown NCC Systems, Inc. Member NCC Systems, Inc. 6738 US Hwy 56 Potsdam NY 13676 (315) 265-4777 Member Alltech Integrations, Inc 7463 SR 11 Potsdam NY 13676 (315) 268-2401