poly-edge-e--phone-expansion-moduleExperience expanded call control with the Poly Edge E Phone Expansion Module, an indispensable accessory for busy offices and contact centers. Engineered to extend the capacity of your Poly Edge E phone, this module adds a bank of programmable keys that simplify everyday tasks, speed dial critical numbers, and streamline conference and transfer operations. Built to endure high traffic environments, it pairs with your Edge E device to deliver faster