Cisco 7945G Administration Guide

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Cisco Unified IP Phone 7965G and 7945G Administration Guide for Cisco Unified Communications Manager 6.1(3)
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Chapter 1 An Overview of the Cisco Unified IP Phone
Understanding Security Features for Cisco Unified IP Phones
Overview of Supported Security Features
Table 1-3 provides an overview of the security features that the Cisco Unified IP Phone 7965G and
7945G supports. For more information about these features and about Cisco Unified Communications
Manager and Cisco
Unified IP Phone security, refer to Cisco Unified Communications Manager
Security Guide.
For information about current security settings on a phone, look at the Security Configuration menus on
the phone (choose Settings > Security Configuration and choose Settings > Device Configuration >
Security Configuration). For more information, see
Chapter 4, “Configuring Settings on the Cisco
Unified IP Phone.”
Note Most security features are available only if a certificate trust list (CTL) is installed on the phone. For
more information about the CTL, refer to “Configuring the Cisco CTL Client” chapter in the Cisco
Unified Communications Manager Security Guide.
Ta b l e 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 (Certificate Authority Proxy Function).
Alternatively, you can install an Locally Significant Certificate (LSC) from the Security
Configuration menu on the phone. See the
“Configuring Security on the Cisco Unified IP
Phone” section on page 3-14 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
Transport Layer Security (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.

Cisco 7945G Specifications

General

Brand	Cisco
Model	7945G
Category	IP Phone
Language	English