4-18
Cisco Unified IP Phone Administration Guide for Cisco Unified Communications Manager 8.5
OL-23092-01
Chapter 4 Configuring Settings on the Cisco Unified IP Phone
Device Configuration Menu
Unified CM Configuration
The Unified CM Configuration contains the options Unified CM1, Unified CM 2, Unified CM3, Unified
CM4, and Unified CM5. These options show Cisco Unified Communications Manager servers that are
available for processing calls from the phone, in prioritized order. To change these options, use
Cisco Unified Communications Manager Administration, Cisco Unified CM Group Configuration.
For an available Cisco Unified Communications Manager server, an option on the Unified CM
Configuration will show the Cisco Unified Communications Manager server IP address or name and one
of the states shown in
Table 4-6
.
An option may also display one of more of the designations or icons shown in
Table 4-7
:
Table 4-6
Cisco Unified Communications Manager Server States
State
Description
Active
Cisco Unified Communications Manager server from which the phone is currently
receiving call-processing services.
Standby
Cisco Unified Communications Manager server to which the phone switches if the
current server becomes unavailable.
Blank
No current connection to this Cisco Unified Communications Manager server.
Table 4-7
Cisco Unified Communications Manager Server Designations
Designation
Description
SRST
Indicates a Survivable Remote Site Telephony router capable of providing
Cisco Unified Communications Manager functionality with a limited feature
set. This router assumes control of call processing if all other Cisco Unified
Communications Manager servers become unreachable. The SRST Cisco
Unified Communications Manager always appears last in the list of servers,
even if it is active.
For more information, refer to
Cisco Unified Communications Manager
Administration Guide
.
TFTP
Indicates that the phone was unable to register with a Cisco Unified
Communications Manager listed in its configuration file and that it registered
with the TFTP server instead.
(Authentication icon)
Appears as a shield and indicates that the call is from a trusted device, and
that
the connection to the Cisco Unified Communications Manager is
authenticated. For more information about authentication, refer to
Cisco
Unified Communications Manager Security Guide
.
(Encryption icon)
Appears as a padlock and indicates that the call is from a trusted device, and
that the connection to the Cisco Unified Communications Manager is
authenticated and encrypted. For more information about authentication and
encryption, refer to
Cisco Unified Communications Manager Security Guide
.
The Encryption icon is also displayed when a Cisco Unified IP phone is
configured as protected. For more information about protected calls, refer to
Cisco Unified Communications Manager Security Guide. Protected calls are
not authenticated.