Cisco Unified IP Phone User Guide for Cisco Unified Communications Manager 8.6 (SCCP and SIP) 1An Overview of Your PhoneCisco Unified IP Phones are full-feature telephones that provide voice communication over the datanetwork that your computer uses, allowing you to place and receive phone calls, put calls on hold,transfer calls, make conference calls, and so on.In addition to basic call-handling features, your Cisco Unified IP Phone can provide enhancedproductivity features that extend your call-handling capabilities. Depending on the configuration,your phone supports:• Access to network data, XML applications, and web-based services.• Online customizing of phone features and services from your Cisco Unified CM User Optionsweb pages.• A comprehensive online help system that displays information on the phone screen.Understanding Buttons and HardwareTo identify buttons and hardware on your phone, refer to the following figures and table.