http://www.cisco.com/c/en/us/support/docs/unified-communications/unified-communications-manager-callmanager/18772-extension-mobility.html

Introduction

Extension Mobility (Hoteling) is a feature that allows you to log in to a phone and have the phone configuration available to you. Line appearances, speed dials, services, and message waiting indicator (MWI) information are present on the phone upon log in, as if the phone is assigned to the user. 6,391 more words