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Overview of Cisco Cius

Security Restrictions

A user cannot barge in to an encrypted call if the Cisco Cius device that is used to barge is not configured for

encryption. When barge fails in this case, a fast busy tone plays on the Cisco Cius on which the user initiated

the barge.

If the initiator Cisco Cius device is configured for encryption, the barge initiator can barge in to a nonsecure

call from the encrypted Cisco Cius device. After the barge occurs, Cisco Unified Communications Manager

classifies the call as nonsecure.

If the initiating Cisco Cius is configured for encryption, the barge initiator can barge in to an encrypted call,

and Cisco Cius indicates that the call is encrypted.

Overview of Configuring and Installing Cisco Cius

When deploying a new IP telephony system, system administrators and network administrators must complete

several initial configuration tasks to prepare the network for IP telephony service. For information and a

checklist for setting up and configuring a Cisco IP telephony network, see the System Configuration Overview

chapter in the Cisco Unified Communications Manager System Guide.

After you set up the IP telephony system and configure system-wide features in Cisco Unified Communications

Manager, you can add Cisco Cius to the system.

The following topics provide an overview of procedures for adding Cisco Cius to your network:

•

Configuring Cisco Cius in Cisco Unified Communications Manager

Use the following methods to add Cisco Cius devices to the Cisco Unified Communications Manager database:

• Auto-registration

• Cisco Unified Communications Manager Administration

• Bulk Administration Tool (BAT)

• BAT and the Tool for Auto-Registered Phones Support (TAPS)

For more information about these choices, see the

Communications

OL-26938-01

◦

Enabled - If you are using a switch that supports multidomain authentication, continue to use the

voice VLAN.

◦ Disabled - If the switch does not support multidomain authentication, disable the Voice VLAN

and consider assigning the port to the native VLAN. See the

information.

Configuring Cisco Cius in Cisco Unified Communications Manager, on page 21

Installing Cisco Cius, on page 24

Manager.

Ethernet Settings Menu

Understanding How Cisco Cius Interacts with Cisco Unified

Cisco Cius Administration Guide, Release 9.2(3)

Security Restrictions

for more