The Cisco IP Phone 7940G is a voice over Internet Protocol telephone for small to medium-sized businesses. It's multi-protocol enabled, supporting Session Initiated Protocol (SIP), Media Gateway Control Protocol (MGCP), as well as Cisco's CallManager Skinny Client Control Protocol (SCCP).
The 7940G provides two programmable line and feature keys, plus a high quality speakerphone. The Cisco IP Phone 7940G also has four dynamic soft keys that guide users through call features and functions. Built-in headset port and integrated Ethernet Switch are standard with the Cisco IP Phone 7940G. It also includes audio controls for full duplex speakerphone, handset and headset. The Cisco IP Phone 7940G 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.
Cisco 7942G IP Phone is designed to meet the communication needs of the managers. Some of the device’s characteristics include:
Pixel-based LCD display
4 dynamically configured buttons for easy reach of the main business functions
2 telephone lines that can be reached with a separate line button
High Definition Audio
Speakerphone and headset jack
Local power supply (via power adapter)
Power over Ethernet (IEEE 802.3af based)
10/100BASE-T Ethernet Switch for connection to a work station