Cisco 7911G - IP Phone VoIP Administration Manual page 34

Understanding Security Features for Cisco Unified IP Phones
Table 1-3 Overview of Security Features (continued)
Feature
Customer-site certificate installation
Device authentication
File authentication
Signaling Authentication
Manufacturing installed certificate
Cisco Unified IP Phone 7906G and 7911G for Cisco Unified Communications Manager 6.0
1-16
Chapter 1
Description
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
Certificate Authority Proxy Function (CAPF). 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 3-17 for more information.
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 configured in authenticated or encrypted mode unless
they can be authenticated by the
Cisco Unified Communications Manager.
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.
Uses the TLS protocol to validate that no tampering has
occurred to signaling packets during transmission.
Each Cisco Unified IP Phones 7906G and 7911G contains a
unique 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.
An Overview of the Cisco Unified IP Phone
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