Cisco 7975G Administration Guide

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Cisco Unified IP Phone 7975G Administration Guide for Cisco Unified Communications Manager 6.0
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Chapter 1 An Overview of the Cisco Unified IP Phone
Understanding Security Features for Cisco Unified IP Phones
Device authentication Occurs between the Cisco Unified Communications Manager server
and the phone when each entity accepts the certificate of the other
entity. Determines whether a secure connection between the phone
and a Cisco
Unified Communications Manager should occur, and, if
necessary, creates a secure signaling path between the entities using
TLS protocol. Cisco
Unified Communications Manager does not
register phones unless they can be authenticated by the
Cisco
Unified Communications Manager.
File authentication Validates digitally-signed files that the phone downloads. The
phone validates the signature to make sure that file tampering did
not occur after the file creation. Files that fail authentication are not
written to Flash memory on the phone. The phone rejects such files
without further processing.
Signaling Authentication Uses the TLS protocol to validate that no tampering has occurred to
signaling packets during transmission.
Manufacturing installed
certificate
Each Cisco Unified IP Phone contains a unique manufacturing
installed certificate (MIC), which is used for device authentication.
The MIC is a permanent unique proof of identity for the phone, and
allows Cisco
Unified Communications Manager to authenticate the
phone.
Secure SRST reference
(SCCP pohones only)
After you configure a SRST reference for security and then reset the
dependent devices in Cisco
Unified Communications Manager
Administration, the TFTP server adds the SRST certificate to the
phone cnf.xml file and sends the file to the phone. A secure phone
then uses a TLS connection to interact with the SRST-enabled
router.
Media encryption Uses SRTP to ensure that the media streams between supported
devices proves secure and that only the intended device receives and
reads the data. Includes creating a media master key pair for the
devices, delivering the keys to the devices, and securing the delivery
of the keys while the keys are in transport.
Signaling encryption Ensures that all SCCP signaling messages that are sent between the
device and the Cisco
Unified Communications Manager server are
encrypted.
CAPF (Certificate Authority
Proxy Function)
Implements parts of the certificate generation procedure that are too
processing-intensive for the phone, and it interacts with the phone
for key generation and certificate installation. The CAPF can be
configured to request certificates from customer-specified
certificate authorities on behalf of the phone, or it can be configured
to generate certificates locally.
Security profiles Defines whether the phone is nonsecure, authenticated, or
encrypted. See the
“Understanding Security Profiles” section on
page 1-13 for more information.
Encrypted configuration files Lets you ensure the privacy of phone configuration files.
Optional disabling of the web
server functionality for a phone
You can prevent access to a phone’s web page, which displays a
variety of operational statistics for the phone.
Table 1-3 Overview of Security Features (continued)
Feature Description

Cisco 7975G Specifications

General

Handset type	Wired handset
Product type	IP Phone
Product color	Grey, Silver
Speakerphone	Yes
Voice codecs	G.711Mu, G.711a, G.722, G.729A, iLBC
Number of melodies	24
Aspect ratio	4:3
Display diagonal	5.6 \
Display resolution	320 x 240 pixels
Lines quantity	8 lines
Phonebook capacity	- entries
Number of VoIP accounts	-
Front camera	No
Security algorithms	128-bit AES
Networking standards	IEEE 802.1Q, IEEE 802.1p, IEEE 802.1x, IEEE 802.3af
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Ethernet LAN interface type	Gigabit Ethernet
Supported network protocols	DHCP, TFTP
Volume control	Digital
Headphone outputs	1
Ethernet LAN (RJ-45) ports	2
Number of handles included	1 pc(s)
AC adapter output voltage	48 V
Storage temperature (T-T)	-10 - 60 °C
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	10 - 95 %
Certification	FCC

Weight and Dimensions

Depth	152.4 mm
Width	266.7 mm
Height	203.2 mm
Weight	1600 g