Cisco 7941G Administration Guide

CHAPTER 2
Cisco Unified IP Phones and Your Network
•
Phone and Network Overview, page 31
•
Cisco Unified Communications Product Interactions, page 31
•
Cisco Unified IP Phone Power, page 33
•
Phone Configuration Files, page 35
•
Phone Startup Process, page 36
•
Cisco Unified Communications Manager Phone Addition Methods, page 38
•
Cisco Unified IP Phones and Different Protocols, page 41
•
Cisco Unified IP Phone MAC Address Determination, page 42
Phone and Network Overview
Cisco Unified IP Phones enable you to communicate by using voice over a data network. To provide this
capability, the Cisco Unified IP Phones depend upon and interact with several other key Cisco Unified IP
Telephony components, including Cisco Unified Communications Manager.
This chapter focuses on the interactions between the Cisco Unified IP Phones and Cisco Unified
Communications Manager, DNS, DHCP, and TFTP servers, and switches. It also describes options for
powering phones.
For related information about voice and IP communications, see:
http://www.cisco.com/en/US/partner/products/sw/voicesw/index.htmlhttp://www.cisco.com/en/US/products/
sw/voicesw/index.html
This chapter provides an overview of the interaction between the Cisco Unified IP Phones and other key
components of the Voice over IP (VoIP) network.
Cisco Unified Communications Product Interactions
To function in the IP telephony network, the Cisco Unified IP Phone must connect to a networking device,
such as a Cisco Catalyst switch. You must also register the Cisco Unified IP Phones with a Cisco
Unified Communications Manager system before sending and receiving calls.
Cisco Unified IP Phone 7941G, 7941G-GE, 7942G, 7961G, 7961G-GE, and 7962G Administration Guide for Cisco Unified
Communications Manager 9.0 (SCCP and SIP)
31

Cisco 7941G Specifications

General

Keypad number of keys	12
Touchscreen	-
Display resolution	320 x 222 pixels
Speakerphone	Yes
Voice codecs	G.729a
Bluetooth	No
Supported network protocols	DHCP, TFTP, SCCP, DSCP
Ethernet LAN (RJ-45) ports	2
Input voltage	48 V
Dimensions (WxDxH)	266.7 x 152.4 x 203.2 mm
Storage temperature (T-T)	-10 - 60 °C
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	10 - 95 %
Handset type	Wired handset
Product type	IP Phone
Product color	Gray
Safety	(UL) 60950, (CSA) C22.2 No. 60950, IEC 60950, EN 60950, AS/NZS 60950
Certification	CE (FCC) 15 (CFR 47) B ICES-003 B EN55022 B CISPR22 B AS/NZ 3548 B VCCI B EN55024 EN 50082-1 EN 61000-3-2 EN 61000-3-3
Compliance industry standards	IEEE 802.3, IEEE 802.3u, IEEE 802.1Q, IEEE 802.3af
Lines quantity	- lines
Phonebook capacity	- entries
Number of handles included	1 pc(s)

Weight and Dimensions

Weight	1600 g