Cisco IP Business Phone 8851/61 Key Expansion Module, Compatible with IP Phones 8851 and 8861, Two 3.5-inch Backlit Colour Displays, 1-Year Limited Hardware Warranty (CP-8800-A-KEM-WMK=)

The Cisco IP Business Phone 8851/61 Key Expansion Module gives you access to more line and feature keys than come as standard with the 8851 and 8861 IP Phones. Designed for receptionists, administrative staff, managers and executives, this office phone accessory enhances your productivity with single-button access to the people and calling features your staff needs most.