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Cisco 7940G Administration Guide

Cisco 7940G
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1-7
Cisco Unified IP Phone 7960G/7940G Administration Guide for Cisco Unified Communications Manager 7.0 (SIP)
OL-15499-01
Chapter 1 An Overview of the Cisco Unified IP Phone
Understanding Security Features for Cisco Unified IP Phones
Configuring Network Parameters Using the Cisco Unified IP Phone
You can configure parameters such as DHCP, TFTP, and IP settings on the phone itself. You can also
obtain statistics about a current call or firmware versions on the phone.
For more information about configuring features and viewing statistics from the phone, see Chapter 4,
“Configuring Settings on the Cisco Unified IP Phone” and see Chapter 6, “Viewing Status, Statistics,
and Firmware Information on the Cisco Unified IP Phone.
Related Topics
Configuring Settings on the Cisco Unified IP Phone, page 4-1
Troubleshooting and Maintenance, page 7-1
Providing Users with Feature Information
If you are a system administrator, you are likely the primary source of information for Cisco Unified IP
Phone users in your network or company. To ensure that you distribute the most current feature and
procedural information, familiarize yourself with Cisco
Unified IP Phone documentation. Make sure to
visit the Cisco
Unified IP Phone web site:
http://www.cisco.com/en/US/products/hw/phones/ps379/tsd_products_support_series_home.html
From this site, you can view access various user guides.
In addition to providing documentation, it is important to inform users of available Cisco Unified IP
Phone features—including those specific to your company or network—and of how to access and
customize those features, if appropriate.
For a summary of some of the key information that phone users need their system administrators to
provide, see
Appendix A, “Providing Information to Users Via a Website.
Understanding Security Features for Cisco Unified IP Phones
Implementing security in the Cisco Unified Communications Manager system prevents identity theft of
the phone and Cisco
Unified Communications Manager server, prevents data tampering, and prevents
call signaling and media stream tampering.
To alleviate these threats, the Cisco Unified IP telephony network establishes and maintains
authenticated and encrypted communication streams between a phone and the server, digitally signs files
before they are transferred to a phone, and encrypts media streams and call signaling between
Cisco
Unified IP phones.
Table 1-2 shows where you can find additional information about security in this and other documents.

Table of Contents

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Cisco 7940G Specifications

General IconGeneral
Keypad number of keys12
Touchscreen-
SpeakerphoneYes
Voice codecsG.711, G.729a
BluetoothNo
Supported network protocolsDHCP, SCCP, SIP, MGCP
Ethernet LAN (RJ-45) ports2
Input voltage48 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 typeWired handset
Product typeIP Phone
Product colorGray
Safety(UL) 60950, (CSA) C22.2 No. 60950
CertificationCE (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 standardsIEEE 802.3, IEEE 802.3u, IEEE 802.1Q
Lines quantity- lines
Phonebook capacity- entries
Number of handles included1 pc(s)
Weight and Dimensions IconWeight and Dimensions
Weight1600 g

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