The Wireless IP Phone 7920 is a mobile phone

Mobile phone

A mobile phone is a device which can make and receive telephone calls over a radio link whilst moving around a wide geographic area. It does so by connecting to a cellular network provided by a mobile network operator...

 branded by Cisco Systems

Cisco Systems

Cisco Systems, Inc. is an American multinational corporation headquartered in San Jose, California, United States, that designs and sells consumer electronics, networking, voice, and communications technology and services. Cisco has more than 70,000 employees and annual revenue of US$...

, Inc. that communicates via IEEE 802.11

IEEE 802.11

IEEE 802.11 is a set of standards for implementing wireless local area network computer communication in the 2.4, 3.6 and 5 GHz frequency bands. They are created and maintained by the IEEE LAN/MAN Standards Committee . The base version of the standard IEEE 802.11-2007 has had subsequent...

b technology. According to C. Giancarlo, senior vice-president of switching

Switching

LAN switching is a form of packet switching used in local area networks. Switching technologies are crucial to network design, as they allow traffic to be sent only where it is needed in most cases, using fast, hardware-based methods.- Layer 2 switching :...

, voice

Voice message

Voice message refers to a message that could be sent to a destination using voice media. Voice itself could be 'packaged' and sent through the IP backbone so that it reaches its marked 'address'. In a technical sense, the process of sending 'voice packets' is a semi passive way of communication...

, and carrier

Common carrier

A common carrier in common-law countries is a person or company that transports goods or people for any person or company and that is responsible for any possible loss of the goods during transport...

 systems at Cisco (as cited in ComputerWeekly.com Ltd., 2003), the 7920 was not intended to replace traditional mobile phones. Instead, he said, it was intended for use exclusively within an enterprise.

Between rechargings of the battery

Battery (electricity)

An electrical battery is one or more electrochemical cells that convert stored chemical energy into electrical energy. Since the invention of the first battery in 1800 by Alessandro Volta and especially since the technically improved Daniell cell in 1836, batteries have become a common power...

, the 7920 is claimed to deliver two hours of "talk time" and twenty-four hours of "standby time" (which presumably means it is switched on, yet idle) (ComputerWeekly.com Ltd., 2003). Twenty-four hours is a relatively low level of standby time compared to GSM mobile phones, which can have standby times of a week or more. This is presumably due to the greater power requirements of the 802.11 hardware and the protocol's lack of power management. In fact, the 7920, while out of range of a WAP will consume its battery in about an hour (this is because it is searching for an AP).

The Cisco 7920 supports Cisco's proprietary SCCP Skinny Client Control Protocol

Skinny Client Control Protocol

The Skinny Call Control Protocol is a proprietary network terminal control protocol originally developed by Selsius Systems....

. Skinny is a proprietary signalling protocol provided by Cisco's CallManager. Open/Shared Key/LEAP

Lightweight Extensible Authentication Protocol

The Lightweight Extensible Authentication Protocol is a proprietary wireless LAN authentication method developed by Cisco Systems. Important features of LEAP are dynamic WEP keys and mutual authentication...

 are supported authentication methods with CCKM

CCKM

CCKM is term used in wireless networks. It stands for Cisco Centralized Key Management, which is a form of Fast Roaming. When a wireless LAN is configured for fast reconnection, a LEAP enabled client device can roam from one access point to another without involving the main server...

/WPA

Wi-Fi Protected Access

Wi-Fi Protected Access and Wi-Fi Protected Access II are two security protocols and security certification programs developed by the Wi-Fi Alliance to secure wireless computer networks...

 joining in the near future. Also, XML

XML

Extensible Markup Language is a set of rules for encoding documents in machine-readable form. It is defined in the XML 1.0 Specification produced by the W3C, and several other related specifications, all gratis open standards....

is going to be supported by Cisco 7920 to enable the development of applications by third parties.