2N EXP50 Phone Expansion ModuleThe 2N EXP50 Phone Expansion Module is a strategic upgrade for busy buildings and multi tenant facilities that rely on a scalable, secure, and fast intercom system. Engineered to complement 2N IP based door entry solutions, the EXP50 adds a dedicated surface with 50 programmable keys, transforming how staff, residents, and visitors interact with access points. When you need to streamline calls, speed up door releases, and improve site management, the