Implementing Cisco IP Telephony and Video, Part 2 (CIPTV2) Foundation Learning Guide (CCNP Collaboration Exam 300-075 CIPTV2), 3rd edition

Introduction xxi

Chapter 1 Cisco Collaboration Solution Multisite Deployment Considerations 1

Multisite Deployment Issues Overview 2

Voice and Video Call Quality Issues 5

Bandwidth Challenges 7

Availability Challenges 10

Dial Plan Challenges 12

Overlapping Numbers 12

Nonconsecutive Numbers 13

Variable-Length Numbering 13

Direct Inward Dialing (DID) Ranges and E.164 Addressing 14

Optimized Call Routing 15

Various PSTN Requirements 16

Scalability 17

Fixed Versus Variable-Length Numbering Plans 17

Detection of End of Dialing in Variable-Length Numbering Plans 20

Optimized Call Routing and PSTN Backup 22

PSTN Requirements 23

Issues Caused by Different Methods of PSTN Dialing 24

Dial Plan Scalability Issues 26

NAT and Security Issues 27

Summary 29

References 30

Review Questions 30

Chapter 2 Understanding Multisite Deployment Solutions 33

Multisite Deployment Solution Overview 34

Quality of Service 36

QoS Advantages 37

Overview of Solutions for Bandwidth Challenges 39

Low-Bandwidth Codecs and RTP Header Compression 41

Codec Configuration in CUCM 42

Disabling the Annunciator for Remote Branches 43

Local Versus Remote Conference Bridges 44

Transcoders 44

Leading Practices for Transcoder Design 45

Mixed Conference Bridge 46

Multicast MOH from the Branch Router Flash 47

An Example of Multicast MOH from the Branch Router Flash 49

An Example of Multicast MOH from the Branch Router Flash Cisco IOS Configuration 51

Alternatives to Multicast MOH from Remote Site Router Flash 52

Preventing Too Many Calls by CUCM Call Admission Control 52

Availability 53

PSTN Backup 55

MGCP Fallback 55

Fallback for IP Phones: SRST, CME SRST, or SIP SRST 56

Using CFUR to Reach Remote Site Cisco IP Phones During WAN

Failure 58

Using CFUR to Reach Users of Unregistered Software IP Phones on

Other Devices 58

AAR and CFNB 59

Mobility Solutions 60

Overview of Dial Plan Solutions 61

NAT and Security Solutions 62

CUBE in Flow-Through Mode 62

Cisco Expressway C and Cisco Expressway E As a Solution to NAT and

Security Issues in a Multisite Environment 63

Summary 64

References 65

Review Questions 65

Chapter 3 Overview of PSTN and Intersite Connectivity Options 69

Overview of Multisite Connection Options 70

CUCM Connection Options Overview 71

Cisco IOS Gateway Protocol Functions Review 72

SIP Trunk Characteristics 73

H.323 Trunk Overview 74

Trunk Implementation Overview 76

Gatekeeper-Controlled ICT and H.225 Trunk Configuration 77

Trunk Types Used by Special Applications 78

Dial Plan Requirements for Multisite Deployments with Distributed Call Processing 79

Implementing Site Codes for On-Net Calls 81

Digit-Manipulation Requirements When Using Access and Site Codes 82

Access and Site Code Requirements for Centralized Call-Processing Deployments 83

Implementing PSTN Access in Cisco IOS Gateways 84

PSTN Access Example 85

Transformation of Incoming Calls Using ISDN TON 85

ISDN TON Example: Calling Number Transformation of Incoming Call 87

Implementing Selective PSTN Breakout 88

Configuring IP Phones to Use Local PSTN Gateway 88

Implementing PSTN Backup for On-Net Intersite Calls 90

Digit-Manipulation Requirements for PSTN Backup of On-Net Intersite Calls 90

Implementing TEHO 92

TEHO Example Without Local Route Groups 93

TEHO Example with Local Route Groups 95

Implementing Globalized Call Routing 96

Globalized Call Routing: Number Formats 98

Normalization of Localized Call Ingress on Gateways 102

Normalization of Localized Call Ingress from Phones 104

Localized Call Egress at Gateways 105

Localized Call Egress at Phones 107

Globalized Call Routing Example: Emergency Dialing 109

Considering Globalized Call Routing Interdependencies 112

Globalized Call Routing and TEHO Advantages 113

Globalized Call Routing TEHO Example 113

Summary 115

References 116

Review Questions 116

Chapter 4 URI-Based Dial Plan for Multisite Deployments 119

URI Dialing Overview 120

URI Endpoint Addressing Overview 123

URI Partitions and Calling Search Spaces 125

URI Call Sources Overview 126

Blended Addressing 127

FQDNs in Directory URIs 128

URI Call Routing 129

Non-Numeric URI Call Routing Process 132

Numeric URI Call Routing Process 134

Routing URI Calls over SIP Trunks 134

Summary 136

References 137

Review Questions 137

Chapter 5 Remote Site Telephony and Branch Redundancy Options 141

Cisco Unified Communications Manager Express 141

Cisco Business Edition 143

Survivable Remote Site Telephony 144

SRST and E-SRST Configuration 146

SRST IOS Dial Plan 148

CUCM SRST Configuration 149

Multicast Music on Hold in SRST 150

MGCP Fallback 153

Cisco Call Forward Unregistered 154

Summary 156

References 156

Review Questions 156

Chapter 6 Cisco Collaboration Solution Bandwidth Management 159

Bandwidth Management Options 159

Voice and Video Codecs 161

Codec Selection 162

Media Resource Group and Media Resource Group List 166

Multicast Music on Hold 168

Multicast MOH IP Address and Port Considerations 172

Local Conference Bridge 172

Transcoder 176

Summary 179

References 180

Review Questions 180

Chapter 7 Call Admission Control (CAC) Implementation 183

Call Admission Control Characteristics 184

CUCM Call Admission Control 184

Location-Based CAC 185

Location Bandwidth Manager 187

Enhanced Location-Based CAC 189

Resource Reservation Protocol 196

RSVP Configuration 198

RSVP SIP Preconditions 199

Automated Alternate Routing 202

IOS Call Admission Control 204

Local CAC 204

Reservation-Based CAC 205

Measurement-Based CAC 206

Summary 206

References 206

Review Questions 207

Chapter 8 Implementing Cisco Device Mobility 209

Device Roaming Overview 210

Issues with Roaming Devices 210

Using Device Mobility to Solve Roaming Device Issues 212

Device Mobility Overview 213

Device Mobility: Dynamic Phone Configuration Parameters 213

Device Mobility Dynamic Configuration by Location-Dependent Device Pools 216

Device Mobility Configuration Elements 217

Relationship Between Device Mobility Configuration Elements 218

Device Mobility Operation 220

Device Mobility Operation Flowchart 221

Device Mobility Considerations 224

Review of Line and Device CSSs 225

Device Mobility and CSSs 225

Examples of Different Call-Routing Paths Based on Device Mobility Groups and Tail-End Hop-Off 226

Device Mobility Interaction with Globalized Call Routing 228

Advantages of Using Local Route Groups and Globalized Call Routing 229

An Example of Globalized Call Routing That Is Not Configured with a Different Device Mobility Group 230

An Example of Globalized Call Routing That Is Not Configured with the Same Device Mobility Group 231

An Example of Globalized Call Routing 232

Device Mobility Configuration 233

Summary 236

References 237

Review Questions 237

Chapter 9 Cisco Extension Mobility 241

Overview of Roaming Between Sites 241

Challenges with Roaming Users 242

CUCM Extension Mobility Overview and Characteristics 243

Extension Mobility: Dynamic Phone Configuration Parameters 244

Extension Mobility with Dynamic Phone Configuration by Device Profiles 245

CUCM Extension Mobility Operation 245

Cisco Extension Mobility and CSSs 247

CUCM Extension Mobility Device Profile Overview 248

Relationship Between Extension Mobility Configuration Elements 249

Default Device Profile and Feature Safe 251

CUCM Extension Mobility Configuration 252

Summary 257

References 257

Review Questions 257

Chapter 10 Implementing Cisco Unified Mobility 261

Cisco Unified Mobility Overview 262

Mobile Connect and Mobile Voice Access Characteristics 263

Cisco Unified Mobility Call Flow 264

Mobile Connect Call Flow 264

Mobile Voice Access Call Flow 266

Cisco Unified Mobility Implementation Requirements 267

Cisco Unified Mobility Configuration Elements 268

Cisco Unified Mobility MGCP or SCCP Gateway PSTN Access 271

MVA Call Flow with MGCP or SCCP PSTN Gateway Access 272

Calling Search Space Handling in Cisco Unified Mobility 273

CSS Handling in Mobile Voice Access 273

Cisco Unified Mobility Access List Functions 274

Operation of Time-of-Day Access Control 274

Cisco Unified Mobility Configuration 275

Configuring Mobile Connect 275

Configuring Mobile Voice Access 281

Summary 284

References 285

Review Questions 285

Chapter 11 Cisco Video Communication Server and Expressway Deployment 287

Cisco VCS and Expressway Series Overview 288

CUCM with Cisco Expressway Series 289

Cisco VCS Control 289

Cisco VCS-C with Cisco VCS Expressway 290

CUCM and Cisco VCS-C (Combined Solution) 290

Common Terminology for Cisco Video and Legacy Video 290

Cisco VCS and Cisco Expressway Series Deployment Options 292

Cisco VCS Deployment 292

Cisco Expressway Series Deployment 293

CUCM and Cisco VCS-C Interconnection 295

Cisco VCS and Cisco Expressway Series Platforms, Licenses, and Features 296

Cisco VCS and Cisco Expressway Licensing 297

Cisco VCS and Cisco Expressway Feature Comparison 297

Cisco VCS and Cisco Expressway Clustering 298

Clustering Considerations 299

Cluster Deployment Overview 300

Cisco VCS and Cisco Expressway Series Initial Configuration 301

Summary 306

References 306

Review Questions 307

Chapter 12 Deploying Users and Endpoints in Cisco VCS Control 311

Cisco VCS User Authentication Options 312

LDAP Authentication Configuration Example 313

Endpoint Registration 314

Endpoint Authentication 316

Cisco VCS Authentication Methods 317

Registration Restriction Policy 318

Cisco TMS Provisioning 319

Deploying Cisco Jabber Video for TelePresence 320

Cisco VCS Zones 320

Local Zone 321

Default Subzone 322

Subzone 323

Traversal Subzone 323

Links 324

Zone Bandwidth Restrictions: Within 325

Zone Bandwidth Restrictions: In&Out 325

Zone Bandwidth Restrictions: Total 326

Pipes 327

Pipe Bandwidth Restrictions 328

Summary 329

References 330

Review Questions 330

Chapter 13 Interconnecting Cisco Unified Communications Manager and Cisco Video Control Server 333

Cisco Unified Communications Manager and Cisco VCS Interconnection Overview 334

Call Flow Between CUCM and Cisco VCS 335

Cisco VCS Dial Plan Components 337

Transforms 338

Admin Policy 338

FindMe Feature 339

Search Rules 340

Configuration of CUCM and Cisco VCS Interconnections 340

FindMe Configuration Procedure 341

Summary 344

References 345

Review Questions 345

Chapter 14 Cisco Unified Communications Mobile and Remote Access 349

Cisco Mobile Remote Access Overview 349

Cisco Mobile Remote Access Components 351

Cisco Mobile Remote Access Operation 352

Cisco Mobile Remote Access Firewall Traversal 352

HTTPS Reverse Proxy 354

DNS SRV Setup 354

Registering Remote Jabber Client with CUCM 355

Cisco Unified Communications Mobile and Remote Access Configuration 357

CUCM Configuration for Cisco Unified Communications MRA 358

IM&P Configuration for Cisco Unified Communications MRA 363

Cisco Expressway (Expressway-C and Expressway-E) Configuration for Cisco Unified Communications MRA 366

Troubleshooting Cisco MRA 373

Summary 373

References 374

Review Questions 374

Chapter 15 Cisco Inter-Cluster Lookup Service (ILS) and Global Dial Plan

Replication (GDPR) 377

Inter-Cluster Lookup Service Overview 378

ILS Networking Overview 378

ILS Networking Configuration 380

ILS-Based SIP URI Dialing/Routing 381

ILS Calls Via SIP Trunk and Cisco Unified Border Element 383

Directory URI, Enterprise Alternate, and +E.164 Alternate Number Exchange 385

Global Dial Plan Replication Overview 386

GDPR Configuration 388

Global Dial Plan Catalogs 391

Summary 393

References 393

Review Questions 394

Chapter 16 Cisco Service Advertisement Framework (SAF) and Call Control Discovery (CCD) 397

Complex Dial Plan Implementation Challenges 397

Cisco Service Advertisement Framework Overview 399

SAF Architecture 399

SAF Characteristics and Operation 402

SAF Clients 402

SAF Client Protocol 403

SAF Forwarders (SAF Forwarding Nodes) 403

SAF Forwarder Protocol 405

SAF Message 406

Call Control Discovery Service Overview 406

Call Control Discovery Schema 408

CCD Characteristics and Operation 408

Use Case 1: Normal Calls via SAF-Enabled Network to Remote Call Control 410

Use Case 2: Calls via PSTN When the SAF Forwarder Is Down 411

Use Case 3: Normal Calls via SAF-Enabled Network to CUBE 411

SAF and CCD Configuration 412

SAF Client Configuration 412

SAF Forwarder Configuration 417

Summary 419

References 420

Review Questions 420

Appendix A Answers Appendix 423

Glossary 429

978158714554, TOC, 2/22/2016