Cisco 7965G Administration Guide

1-12
Cisco Unified IP Phone 7965G and 7945G Administration Guide for Cisco Unified Communications Manager 6.0
OL-12650-01
Chapter 1 An Overview of the Cisco Unified IP Phone
Understanding Security Features for Cisco Unified IP Phones
Table 1-3 Overview of Security Features
Feature Description
Image authentication Signed binary files (with the extension .sgn) prevent tampering with
the firmware image before it is loaded on a phone. Tampering with
the image causes a phone to fail the authentication process and
reject the new image.
Customer-site certificate
installation
Each Cisco Unified IP Phone requires a unique certificate for device
authentication. Phones include a manufacturing installed certificate
(MIC), but for additional security, you can specify in Cisco
Unified
Communications Manager Administration that a certificate
be installed by using the CAPF
1
. Alternatively, you can install an
LSC from the Security Configuration menu on the phone. See the
“Configuring Security on the Cisco Unified IP Phone” section on
page 3-13 for more information.
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.

Cisco 7965G Specifications

General

Protocol Support	SIP, SCCP
Weight	3.5 lbs (1.6 kg)
Ethernet	10/100 Mbps
Power	IEEE 802.3af Power over Ethernet (PoE)
Expansion Module Support	Supports up to two Cisco Unified IP Phone Expansion Modules
Speakerphone	Full-duplex speakerphone
Lines	6 lines
Codecs	G.711, G.729a, iLBC