To configure a Cisco CallManager cluster for security, first enable services, then use the CTL Client to set cluster to mixed mode and create a signed CTL. Finally, deploy the certificates to the IP Phones and set the device security mode through the CallManager Administration.


A and C

You must enable both the Cisco CAPF and CTL Provider when configuring a Cisco CallManager cluster for security.



At a minimum, the Cisco CTL Client requires the Windows 2000 operating system, and at least one USB port, Smart Card service enabled. It does also function on the Windows XP operating system.



Upgrading an LSC on a Cisco IP Phone can be done through the CallManager Administration utility without updating the CTL using the Cisco CTL Client.


A and F

These answers show the valid security configuration options of the Cisco IP Phone through the CallManager Administration.


C and D

When a phone configured for authentication calls a nonsecure phone, the resulting call will negotiate to the lowest-common-denominator, which is nonsecure. Likewise, when a phone configured for encryption calls a phone configured for authentication, the resulting call will negotiate to the lowest-common-denominator, which is authentication.


C and D

You can generate a query using the device name through the Find and List Phones window. The certificate lifetime is not a searchable field.


A and E

You can query based on both the authentication mode and device security mode from the Find and List Phones window.



The Cisco 7920 Wireless IP Phone does not support the phone security features.


B, C, and D

All of these communication types cannot be encrypted using phone security. In addition, calls streaming music on hold (MOH) cannot be secured.

Part I: Cisco CallManager Fundamentals

Introduction to Cisco Unified Communications and Cisco Unified CallManager

Cisco Unified CallManager Clustering and Deployment Options

Cisco Unified CallManager Installation and Upgrades

Part II: IPT Devices and Users

Cisco IP Phones and Other User Devices

Configuring Cisco Unified CallManager to Support IP Phones

Cisco IP Telephony Users

Cisco Bulk Administration Tool

Part III: IPT Network Integration and Route Plan

Cisco Catalyst Switches

Configuring Cisco Gateways and Trunks

Cisco Unified CallManager Route Plan Basics

Cisco Unified CallManager Advanced Route Plans

Configuring Hunt Groups and Call Coverage

Implementing Telephony Call Restrictions and Control

Implementing Multiple-Site Deployments

Part IV: VoIP Features

Media Resources

Configuring User Features, Part 1

Configuring User Features, Part 2

Configuring Cisco Unified CallManager Attendant Console

Configuring Cisco IP Manager Assistant

Part V: IPT Security

Securing the Windows Operating System

Securing Cisco Unified CallManager Administration

Preventing Toll Fraud

Hardening the IP Phone

Understanding Cryptographic Fundamentals

Understanding the Public Key Infrastructure

Understanding Cisco IP Telephony Authentication and Encryption Fundamentals

Configuring Cisco IP Telephony Authentication and Encryption

Part VI: IP Video

Introducing IP Video Telephony

Configuring Cisco VT Advantage

Part VII: IPT Management

Introducing Database Tools and Cisco Unified CallManager Serviceability

Monitoring Performance

Configuring Alarms and Traces

Configuring CAR

Using Additional Management and Monitoring Tools

Part VIII: Appendix

Appendix A. Answers to Review Questions


Authorized Self-Study Guide Cisco IP Telephony (CIPT)
Cisco IP Telephony (CIPT) (Authorized Self-Study) (2nd Edition)
ISBN: 158705261X
EAN: 2147483647
Year: 2004
Pages: 329

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