Cisco 7940G Administration Guide

CHAPTER
2-1
Cisco Unified IP Phone 7960G/7940G Administration Guide for Cisco Unified Communications Manager 7.0 (SIP)
OL-15499-01
2
Preparing to Install the Cisco Unified IP Phone on
Your Network
Cisco Unified IP Phones enable you to communicate using voice over a data network. To provide this
capability, the 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 Phone 7960G and 7940G and
Cisco
Unified Communications Manager, DNS and DHCP servers, TFTP servers, and switches. It also
describes options for powering phones.
For related information about voice and IP communications, refer to this URL:
http://www.cisco.com/en/US/products/sw/voicesw/index.html
This chapter provides an overview of the interaction between the Cisco Unified IP Phone and other key
components of the Voice over IP (VoIP) network. It includes the following topics:
• Understanding Interactions with Other Cisco Unified IP Telephony Products, page 2-1
• Providing Power to the Cisco Unified IP Phone, page 2-3
• Understanding Phone Configuration Files, page 2-5
• Understanding the Phone Startup Process, page 2-6
• Adding Phones to the Cisco Unified Communications Manager Database, page 2-7
• Using Cisco Unified IP Phones with Different Protocols, page 2-9
• Determining the MAC Address for a Cisco Unified IP Phone, page 2-11
Understanding Interactions with Other Cisco
Unified
IP Telephony Products
To function in the IP telephony network, the Cisco Unified IP Phone must be connected to a networking
device, such as a Cisco Catalyst switch. You must also register the Cisco
Unified IP Phone with a
Cisco
Unified Communications Manager system before sending and receiving calls.
This section includes the following topics:
• Understanding How the Cisco Unified IP Phone Interacts with Cisco Unified Communications
Manager, page 2-2
• Understanding How the Cisco Unified IP Phone Interacts with the VLAN, page 2-2

Cisco 7940G Specifications

General

Keypad number of keys	12
Touchscreen	-
Speakerphone	Yes
Voice codecs	G.711, G.729a
Bluetooth	No
Supported network protocols	DHCP, SCCP, SIP, MGCP
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
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 FCC 68 (CFR47) HAC IC CS-03
Compliance industry standards	IEEE 802.3, IEEE 802.3u, IEEE 802.1Q
Lines quantity	- lines
Phonebook capacity	- entries
Number of handles included	1 pc(s)

Weight and Dimensions

Weight	1600 g