larger cover

Add To My Wish List

Register your product to gain access to bonus material or receive a coupon.

Practical Cisco Unified Communications Security


  • Sorry, this book is no longer in print.
Not for Sale

eBook (Watermarked)

  • Your Price: $51.51
  • List Price: $64.39
  • Includes EPUB and PDF
  • About eBook Formats
  • This eBook includes the following formats, accessible from your Account page after purchase:

    ePub EPUB The open industry format known for its reflowable content and usability on supported mobile devices.

    Adobe Reader PDF The popular standard, used most often with the free Acrobat® Reader® software.

    This eBook requires no passwords or activation to read. We customize your eBook by discreetly watermarking it with your name, making it uniquely yours.

  • About
  • Description
  • Sample Content
  • Updates


  • Follows the proven “Explain, Demonstrate, Verify” methodology: illuminates each security concern, walks through remediation, and helps you make sure you’ve succeeded
  • Helps you comply with crucial local, federal and industry security regulations, reduce your attack surface, and strengthen your security posture
  • Reflects key updates to Cisco collaboration architecture: Expressway, mobile/remote access, Cisco Meeting Server, encryption enhancements, and advanced business-to-business collaboration

  • Copyright 2021
  • Dimensions: 7-3/8" x 9-1/8"
  • Pages: 528
  • Edition: 1st
  • Book
  • ISBN-10: 0-13-665445-2
  • ISBN-13: 978-0-13-665445-2

Master the foundations of modern Cisco Unified Communications (UC) system security

This guide helps you build foundational knowledge for securing modern Cisco Unified Communications environments that support voice, video, messaging, and meetings, and support different types of real-time collaboration capabilities based on mobile/remote access and mobile devices based on bring-your-own-device (BYOD) initiatives.

Writing for administrators and managers, two Cisco collaboration experts bring together methods and insights to illuminate both the “why” and the “how” of effective collaboration security. Using the proven “Explain, Demonstrate, and Verify” methodology, they explain each threat, demonstrate remediation, and show how to confirm correct implementation. You’ll walk through securing each attack surface in a logical progression, across each Cisco UC application domain.

The authors address key updates to Cisco collaboration architecture, including Expressway, Cisco Meeting Server, encryption enhancements, and advanced business-to-business collaboration. You’ll find quick-reference checklists in each chapter, and links to more detail wherever needed.

  • Begin by protecting your workforce through basic physical security and life/safety techniques
  • Understand how attackers seek to compromise your UC system’s network environment—and your best countermeasures
  • Maintain security across all UC deployment types n Protect core UC applications by locking down and hardening the core operating system
  • Use encryption to protect media and signaling, and enforce secure authentication
  • Secure Cisco Unified Communications Manager, Cisco Unity Connection, and Cisco Meeting Server
  • Deploy Session Border Controllers to provide security controls for VoIP and video traffic
  • Provide additional protection at the edge of the network
  • Safeguard cloud-based and hybrid-cloud services
  • Enable organizations to seamlessly and securely connect to cloud UC services
  • Allow remote teleworker users to connect safely to local UC resources

Online Sample Chapter

Security Through Network Fundamentals

Sample Pages

Download the sample pages (includes Chapter 3)

Table of Contents

Introduction xix

Chapter 1 The Importance of Practical UC Security 1

Identifying the Threat Landscape 2

The Danger of Shadow IT 4

Balancing Operations and Security 5

Minimizing Complexity 7

Visibility and Management 10

Introduction to ACME: Case Study 11

Summary 13

Additional Resources 14

Chapter 2 Physical Security and Life Safety 15

Introduction to Physical Security and Life Safety 15

Life and Safety Considerations 28

Summary 53

Additional Resources 54

Chapter 3 Security Through Network Fundamentals 55

Introduction to Network Security 57

Segmentation 58

Micro Segmentation 59

Secure Network Access 64

Security Features 75

Firewalls and Access Controls 84

Continuous Monitoring 86

Summary 86

Additional Resources 87

Chapter 4 Maintaining Security Across UC Deployment Types 89

Common Enterprise Collaboration Deployment Models and Security Considerations 90

An Overview of How to Secure Cluster Communications 96

NTP Authentication Enablement and Verification 100

Securing Intra-Cluster Signaling and Traffic 103

Securing the Signaling Traffic to IOS Voice and Analog Gateways 110

Securing the Integration with Cisco Emergency Responder 118

Summary 123

Additional Resources 124

Chapter 5 Hardening the Core Cisco UC Appliance Operating Systems 125

Defining the Core UC Applications 126

Hardening the Voice Operating System 138

Performing OS Lockdown via CLI 147

Summary 159

Additional Resources 159

Chapter 6 Core Cisco UC Application Lockdown 161

Types of Users in Cisco Unified Communications Manager and Cisco Unity Connection 162

Strengthening Local User Account Controls 163

Importing End Users from a LDAP Directory 175

Using Single Sign-On to Simplify the Login Experience 186

Synching End Users Between Unity Connection and Unified CM Using

Locking Down the GUI 201

Enabling System Monitoring Using SNMP and Syslog 204

Disaster Recovery Planning and Best Practices 213

Summary 214

Additional Resources 214

Chapter 7 Encrypting Media and Signaling 217

Licensing (Encryption License) and Allowing Export Restrictions Requirements 218

FIPS Considerations When Enabling Secure Signaling and Media Encryption 222

Public Key Infrastructure Overview 222

TFTP File Encryption 237

Overview of the Endpoint Registration Process 239

Applying the Secure Phone Profiles and LSC to the Phones 264

Summary 271

Additional Resources 271

Chapter 8 Securing Cisco Unified Communications Manager (Cisco) 273

Endpoint Hardening 274

Secure Conferencing 276

Conference Now 298

Smart Licensing 298

Summary 302

Additional Resources 303

Chapter 9 Securing Cisco Unity Connection 305

Baseline Security Considerations Overview 306

Securing User Access to the Unity Connection 311

Securely Integrating Unity Connection with Unified CM 316

Preventing Toll Fraud in Unity Connection 325

Summary 336

Additional Resources 337

Chapter 10 Securing Cisco Meeting Server 339

CMS Overview and Deployment Modes 340

Operating System Hardening 342

Infrastructure Considerations 347

Securing CMS Connections 351

Certificate Verification 356

Certificate Assignment 360

Application Programming Interfaces (APIs) 367

Inbound and Outbound Calling 370

Summary 381

Additional Resources 382

Chapter 11 Securing the Edge 383

Business Requirements for the Collaboration Edge 383

Cisco’s Collaboration Edge Architecture 384

Deploying CUBE 388

Security Features Within Expressway 403

Deploying Mobile and Remote Access 406

Defending Against Attacks at the Edge 420

B2B Connectivity 422

Summary 424

Additional Resources 425

Chapter 12 Securing Cloud and Hybrid Cloud Services 427

Business Drivers for Cloud and Hybrid UC Services 428

Coordinating for Governance and Compliance 430

Considerations for Secure Calling 433

Securing Messaging Services 446

Meeting Management and Security Controls 456

Security Across Emerging Features 463

IoT Security 467

Summary 470

Additional Resources 470

Afterword 471

TOC, 9780136654452, 11/5/2020

Cisco Press Promotional Mailings & Special Offers

I would like to receive exclusive offers and hear about products from Cisco Press and its family of brands. I can unsubscribe at any time.


Pearson Education, Inc., 221 River Street, Hoboken, New Jersey 07030, (Pearson) presents this site to provide information about Cisco Press products and services that can be purchased through this site.

This privacy notice provides an overview of our commitment to privacy and describes how we collect, protect, use and share personal information collected through this site. Please note that other Pearson websites and online products and services have their own separate privacy policies.

Collection and Use of Information

To conduct business and deliver products and services, Pearson collects and uses personal information in several ways in connection with this site, including:

Questions and Inquiries

For inquiries and questions, we collect the inquiry or question, together with name, contact details (email address, phone number and mailing address) and any other additional information voluntarily submitted to us through a Contact Us form or an email. We use this information to address the inquiry and respond to the question.

Online Store

For orders and purchases placed through our online store on this site, we collect order details, name, institution name and address (if applicable), email address, phone number, shipping and billing addresses, credit/debit card information, shipping options and any instructions. We use this information to complete transactions, fulfill orders, communicate with individuals placing orders or visiting the online store, and for related purposes.


Pearson may offer opportunities to provide feedback or participate in surveys, including surveys evaluating Pearson products, services or sites. Participation is voluntary. Pearson collects information requested in the survey questions and uses the information to evaluate, support, maintain and improve products, services or sites; develop new products and services; conduct educational research; and for other purposes specified in the survey.

Contests and Drawings

Occasionally, we may sponsor a contest or drawing. Participation is optional. Pearson collects name, contact information and other information specified on the entry form for the contest or drawing to conduct the contest or drawing. Pearson may collect additional personal information from the winners of a contest or drawing in order to award the prize and for tax reporting purposes, as required by law.


If you have elected to receive email newsletters or promotional mailings and special offers but want to unsubscribe, simply email

Service Announcements

On rare occasions it is necessary to send out a strictly service related announcement. For instance, if our service is temporarily suspended for maintenance we might send users an email. Generally, users may not opt-out of these communications, though they can deactivate their account information. However, these communications are not promotional in nature.

Customer Service

We communicate with users on a regular basis to provide requested services and in regard to issues relating to their account we reply via email or phone in accordance with the users' wishes when a user submits their information through our Contact Us form.

Other Collection and Use of Information

Application and System Logs

Pearson automatically collects log data to help ensure the delivery, availability and security of this site. Log data may include technical information about how a user or visitor connected to this site, such as browser type, type of computer/device, operating system, internet service provider and IP address. We use this information for support purposes and to monitor the health of the site, identify problems, improve service, detect unauthorized access and fraudulent activity, prevent and respond to security incidents and appropriately scale computing resources.

Web Analytics

Pearson may use third party web trend analytical services, including Google Analytics, to collect visitor information, such as IP addresses, browser types, referring pages, pages visited and time spent on a particular site. While these analytical services collect and report information on an anonymous basis, they may use cookies to gather web trend information. The information gathered may enable Pearson (but not the third party web trend services) to link information with application and system log data. Pearson uses this information for system administration and to identify problems, improve service, detect unauthorized access and fraudulent activity, prevent and respond to security incidents, appropriately scale computing resources and otherwise support and deliver this site and its services.

Cookies and Related Technologies

This site uses cookies and similar technologies to personalize content, measure traffic patterns, control security, track use and access of information on this site, and provide interest-based messages and advertising. Users can manage and block the use of cookies through their browser. Disabling or blocking certain cookies may limit the functionality of this site.

Do Not Track

This site currently does not respond to Do Not Track signals.


Pearson uses appropriate physical, administrative and technical security measures to protect personal information from unauthorized access, use and disclosure.


This site is not directed to children under the age of 13.


Pearson may send or direct marketing communications to users, provided that

  • Pearson will not use personal information collected or processed as a K-12 school service provider for the purpose of directed or targeted advertising.
  • Such marketing is consistent with applicable law and Pearson's legal obligations.
  • Pearson will not knowingly direct or send marketing communications to an individual who has expressed a preference not to receive marketing.
  • Where required by applicable law, express or implied consent to marketing exists and has not been withdrawn.

Pearson may provide personal information to a third party service provider on a restricted basis to provide marketing solely on behalf of Pearson or an affiliate or customer for whom Pearson is a service provider. Marketing preferences may be changed at any time.

Correcting/Updating Personal Information

If a user's personally identifiable information changes (such as your postal address or email address), we provide a way to correct or update that user's personal data provided to us. This can be done on the Account page. If a user no longer desires our service and desires to delete his or her account, please contact us at and we will process the deletion of a user's account.


Users can always make an informed choice as to whether they should proceed with certain services offered by Cisco Press. If you choose to remove yourself from our mailing list(s) simply visit the following page and uncheck any communication you no longer want to receive:

Sale of Personal Information

Pearson does not rent or sell personal information in exchange for any payment of money.

While Pearson does not sell personal information, as defined in Nevada law, Nevada residents may email a request for no sale of their personal information to

Supplemental Privacy Statement for California Residents

California residents should read our Supplemental privacy statement for California residents in conjunction with this Privacy Notice. The Supplemental privacy statement for California residents explains Pearson's commitment to comply with California law and applies to personal information of California residents collected in connection with this site and the Services.

Sharing and Disclosure

Pearson may disclose personal information, as follows:

  • As required by law.
  • With the consent of the individual (or their parent, if the individual is a minor)
  • In response to a subpoena, court order or legal process, to the extent permitted or required by law
  • To protect the security and safety of individuals, data, assets and systems, consistent with applicable law
  • In connection the sale, joint venture or other transfer of some or all of its company or assets, subject to the provisions of this Privacy Notice
  • To investigate or address actual or suspected fraud or other illegal activities
  • To exercise its legal rights, including enforcement of the Terms of Use for this site or another contract
  • To affiliated Pearson companies and other companies and organizations who perform work for Pearson and are obligated to protect the privacy of personal information consistent with this Privacy Notice
  • To a school, organization, company or government agency, where Pearson collects or processes the personal information in a school setting or on behalf of such organization, company or government agency.


This web site contains links to other sites. Please be aware that we are not responsible for the privacy practices of such other sites. We encourage our users to be aware when they leave our site and to read the privacy statements of each and every web site that collects Personal Information. This privacy statement applies solely to information collected by this web site.

Requests and Contact

Please contact us about this Privacy Notice or if you have any requests or questions relating to the privacy of your personal information.

Changes to this Privacy Notice

We may revise this Privacy Notice through an updated posting. We will identify the effective date of the revision in the posting. Often, updates are made to provide greater clarity or to comply with changes in regulatory requirements. If the updates involve material changes to the collection, protection, use or disclosure of Personal Information, Pearson will provide notice of the change through a conspicuous notice on this site or other appropriate way. Continued use of the site after the effective date of a posted revision evidences acceptance. Please contact us if you have questions or concerns about the Privacy Notice or any objection to any revisions.

Last Update: November 17, 2020