- Key expansion module
Expand personal interaction within departments while increasing responsiveness to inbound callers with the Cisco IP Phone 8800 Key Expansion Module. Designed for receptionists, administrative staff, managers and executives, this module simplifies communication with single-button access to various features. It adds 14 physical keys with access to 14 additional keys, using the page keys, for a total of 28 additional keys. This expansion module is specially designed for use with the Cisco 8851 and 8861 IP phones.