The Cisco IP Phone series is a standards-based communication appliance. The Cisco IP series phones can interoperate with IP telephony systems based on Cisco CallManager technology (version 3.0 or higher is required), H.323, or Session Initiated Protocol (SIP) and, in the future, Media Gateway Control Protocol (MGCP), with system-initiated software updates. This multiprotocol capability is an industry first and provides investment protection and migration capability.The Cisco IP Phone 7960 is a second-generation, full-featured IP phone primarily for manager and executive needs. It provides six programmable line/feature buttons and four interactive soft keys that guide a user through call features and functions. The Cisco IP Phone 7960 also features a large, pixel-based LCD display. The display provides features such as date and time, calling party name, calling party number, and digits dialed. The graphic capability of the display allows for the inclusion of present and future features.