DESC: The Avaya 5420 Digital Telephone sports an array of convenient features, while supporting expansion capabilities and effective integration with current infrastructure investments. This telephone provides a large-scale display for easy viewing and call control with 24 call appearance/feature buttons. Administration and ongoing maintenance is simplified as the switch automatically performs key/button labeling. This eliminates the time-consuming and laborious task of using paper labels to denote phone features, and reduces costs when moving phones among users or offices. Online access to electronic downloads gives near-instant access for key product upgrades and feature enhancements as they occur. Additional features such as call logging and a speed-dial directory help enhance overall productivity by giving providing users with the tools needed for more effective call tracking and faster outbound calling capabilities.