Glossary

ITU

IVR

International Telecommunication Union. An organization established by the United Nations to set international telecommunications standards and to allocate frequencies for specific uses.

Interactive voice response. Describes systems that provide information in the form of recorded messages over telephone lines in response to user input in the form of spoken words or, more commonly, DTMF signaling. Examples include banks that allow you to check your balance from any telephone and automated stock quote systems.

L

LDAP

Lightweight Directory Access Protocol. Protocol that provides access for

 

management and browser applications that provide read/write interactive access

 

to the X.500 Directory.

LEC

Local exchange carrier. A local telephone company or communications common

 

carrier that provides ordinary local voice-grade telecommunications service

 

under regulation within a specified service area.

location server

A SIP redirect or proxy server uses a location server to get information about a

 

caller's location. Location services are offered by location servers.

M

MCU

MGCP

MWI

mu-law

Multipoint control unit. A bridging or switching device that supports multipoint videoconferencing.

Media Gateway Control Protocol.

Message waiting indication.

Commonly written u-law. North American companding standard used in conversion between analog and digital signals in PCM systems. Similar to the European A-law. See also A-law and companding.

 

Cisco IP Phone Models 7905G and 7912G Administrator Guide (SIP)

GL-6

OL-4277-01

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Cisco Systems 7905G, 7912G manual GL-6

7912G, 7905G specifications

Cisco Systems is a leading provider of networking and telecommunications equipment, and among its extensive range of products, the Cisco 7900 Series of IP phones has made a notable impact in enterprise communication. Key models in this series include the Cisco 7905G, 7912G, and 7902G, each designed to enhance productivity through advanced features, intuitive interfaces, and robust technology.

The Cisco 7905G is designed for basic telephony needs and is ideal for administrative environments or areas with high call volumes. It features a large single-line LCD display, providing users with clear visibility of call information. The phone supports Power over Ethernet (PoE), making installation easier and reducing clutter by eliminating the need for an additional power supply. Its hands-free and headset support enhances user convenience, allowing for easy multitasking during calls.

Moving on to the Cisco 7912G, this model is designed for more demanding communication requirements. It features a larger, backlit display, providing improved visibility in various lighting conditions. The Cisco 7912G supports up to 12 programmable line or feature keys, giving users the flexibility to tailor the phone to their specific needs. Additionally, it incorporates advanced audio technologies, such as wideband audio for enhanced voice clarity and a built-in speakerphone, allowing users to communicate effectively in busy environments.

The Cisco 7902G, while offering basic features, is a reliable choice for users who need straightforward, cost-effective telephony solutions. It features an intuitive design with three dedicated buttons for line status, a built-in speakerphone, and support for wideband audio. The phone is geared for users who require essential telephony features without the complexity of additional functionalities, making it suitable for front-desk and general office use.

Overall, these models within the Cisco 7900 series exemplify the company's commitment to providing high-quality enterprise communication tools. With a focus on advanced audio technologies, user-friendly interfaces, and adaptability to various business environments, the Cisco 7905G, 7912G, and 7902G cater to the diverse needs of modern organizations. As companies continue to pursue seamless communication, these IP phones remain a valuable asset in their telephony infrastructure, enhancing collaboration and productivity among teams everywhere.