CHAPT ER
1-1
Cisco Unified IP Phone Administration Guide for Cisco Unified Communications Manager 8.6 (SCCP and SIP)
OL-23091-01
1
An Overview of the Cisco Unified IP Phones
The Cisco Unified IP Phones 7962G, 7942G, 7961G, 7961G-GE (gigabit Ethernet version), 7941G, and
7941G-GE (gigabit Ethernet version) are full-feature telephones that provide voice communication over
an Internet Protocol (IP) network. The gigabit Ethernet Cisco Unified IP Phones 7961G-GE and
7941G-GE deliver the latest technology and advancements in Gigabit Ethernet VoIP telephony. The
Cisco Unified IP Phones function much like a digital business phone, allowing you to place and receive
phone calls and to access features such as mute, hold, transfer, speed dial, call forward, and more. In
addition, because the phone is connected to your data network, it offers enhanced IP telephony features,
including access to network information and services, and customizeable features and services. The
phone also supports features that include file authentication, device authentication, signaling encryption,
and media encryption.
Cisco Unified IP Phones, like other network devices, must be configured and managed. These phones
encode G.711a, G.711µ, G.722, G.729a, G.729ab, and iLBC codecs and decode G.711a, G.711u, G.722,
G.729, G729a, G729b, G729ab and iLBC codecs. These phones also support uncompressed wideband
(16bits, 16kHz) audio.
This chapter includes the following topics:
• Understanding the Cisco Unified IP Phone 7962G and 7942G 7962G, 7942G, 7961G, 7961G-GE,
7941G, and 7941G-GE, page 1-2
• What Networking Protocols are Used?, page 1-5
• What Features are Supported on the Cisco Unified IP Phone 7962G and 7942G?, page 1-9
• Understanding Security Features for Cisco Unified IP Phones, page 1-11
• Reducing Power Consumption on the Phones, page 1-21
• Overview of Configuring and Installing Cisco Unified IP Phones, page 1-21
Caution Using a cell, mobile, or GSM phone, or two-way radio in close proximity to a Cisco Unified IP Phone
may cause interference. For more information, see the manufacturer’s documentation of the interfering
device.