Cisco 7931G Administration Guide

CHAPTER
1-1
Cisco Unified IP Phone 7931G Administration Guide for Cisco Unified Communications Manager 8.0 (SCCP and SIP)
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1
An Overview of the Cisco Unified IP Phone
The Cisco Unified IP Phone 7931G is a full-featured telephone that provides a voice communication
over an IP (VoIP) network. Designed for users who are familiar with traditional key sets, these phones
function much like digital business phones, by allowing users to place and receive phone calls and to
access features such as mute, hold, transfer, speed dial, and call forward.
In addition, because Cisco Unified IP Phones are connected to your data network, they offer enhanced
IP telephony features, including access to network information and services, and customizeable features
and services. The phones also support security features that include file and device authentication,
signaling encryption, and media encryption.
The Cisco Unified IP Phone 7931G provides a pixel-based backlit display, 24 configurable line buttons,
and various other functions to meet the communications needs of business with moderate telephone
traffic and specific call requirements. Dedicated hold, redial, and transfer keys facilitate call handling.
Illuminated mute and speakerphone keys give a clear indication of speaker status.
A Cisco Unified IP Phone, like other network devices, must be configured and managed. These phones
encode G.711a, G.711u, G.722, G.729a, G.729ab, iLBC, and decode G.711a, G.711u, G.722, iLBC,
G.729, G.729a, G.729b, and G.729ab. These phones also support uncompressed wideband
(16 bits, 16 kHz) audio.
This chapter includes these topics:
• Understanding the Cisco Unified IP Phone 7931G, page 1-2
• Accessing Phone Menus and Local Features, page 1-4
• What Networking Protocols Are Used?, page 1-5
• What Features are Supported on the Cisco Unified IP Phone 7931G?, page 1-9
• Understanding Security Features for Cisco Unified IP Phones, page 1-11
• Overview of Configuring and Installing Cisco Unified IP Phones, page 1-19
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, refer to the manufacturer's documentation of the
interfering device.

Cisco 7931G Specifications

General

Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Product color	Black
Wall mountable	Yes
Electromagnetic compatibility	FCC Part 15 (CFR 47) Class B, ICES-003 Class B, EN55022 Class B, CISPR22 Class B, AS/NZS CISPR 22 Class B, CISPR 24, VCCI Class B, EN55024, EN 50082-1, EN 61000-3-2, EN 61000-3-3, EN 61000-6-1
Wi-Fi	No
Networking standards	IEEE 802.1Q, IEEE 802.1af, IEEE 802.1p
Ethernet LAN interface type	Fast Ethernet
Supported network protocols	DHCP, TFTP, CDP
Lines quantity	24 lines
Phonebook capacity	- entries
Number of VoIP accounts	-
Voice codecs	G.711a, G.729A, G.729B, G.729ab
Volume control	Digital
Display resolution	192 x 64 pixels
Display number of lines	3 lines
Display number of colors	Monochrome
Storage temperature (T-T)	-10 - 60 °C
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	10 - 95 %
Safety	(UL) 60950, (CSA) C22.2 No. 60950, EN 60950, IEC 60950, AS/NZS60950, TS 001
Number of handles included	1 pc(s)

Weight and Dimensions

Depth	229 mm
Width	203 mm
Height	178 mm
Weight	1360 g