CCIE Collaboration Quick Reference

Akhil Behl, CCIE No. 19564, is a solutions architect with Cisco Advanced Services, focusing on Cisco Collaboration and Security architectures. He leads Collaboration and Security projects and service delivery worldwide for Cisco Services and the Collaborative Professional Services (CPS) portfolio. He has played a major role in service conception and creation for various services within Cisco Advanced Services. Akhil has a wide range of experience, from presales to sales to professional services to delivery to post sales, with expertise in consulting, advisory, and guidance services. Prior to his current role, Akhil spent 10+ years working in various roles at Linksys as a technical support lead, as an escalation engineer at the Cisco Technical Assistance Center (TAC), and as a network consulting engineer in Cisco Advanced Services. Akhil has a bachelor of technology degree in electronics and telecommunications from IP University and a master's degree in business administration from Symbiosis Institute. He is a dual Cisco Certified Internetwork Expert in Voice and Security. He also holds many other industry certifications, such as PMP, ITIL, VCP, CCNA, CCSP, CCVP, ISO/IEC 27002, TOGAF, and CEH. Over the course of his career, Akhil has presented and contributed at various industry forums such as Enterprise Connect, Cloud Connect, Cloud Summit, Interop, Cisco Networkers, and SecCon. He has several research papers published in various national and international journals, including IEEE journals, and is the author of the Cisco Press title Securing Cisco IP Telephony Networks.

Introduction

Chapter 1 Cisco Collaboration Infrastructure 1

Cisco Unified Communications Deployment Models 1

Single-Site Deployment Model 2

Multisite WAN with Centralized Call Processing Deployment Model 3

Multisite WAN with Distributed Call Processing Deployment Model 4

Clustering over WAN Call Processing Deployment Model 5

Network Services 6

Dynamic Host Configuration Protocol 6

Domain Name System 7

Trivial File Transfer Protocol 8

Network Time Protocol 11

Cisco Discovery Protocol 12

Link Layer Discovery Protocol 14

Power over Ethernet 15

Voice and Data VLANs 16

IP Routing in Cisco Collaboration Campus Environments 17

Campus Infrastructure Design 17

Campus Access Layer 18

Campus Distribution Layer 18

Campus Core Layer 18

Campus Routed Access Layer Design 19

IPv6 in Cisco Collaboration Networks 20

IPv6 Address Types 21

IPv6 Addressing Model 21

Virtualization in Cisco Collaboration Solutions 23

Cisco UCS Servers 24

VMware ESXi for Cisco Collaboration Virtualization 26

UC Application Install Answer File 26

IP Multicast 27

Wireless in Cisco Collaboration Solutions 28

Chapter 2 Quality of Service (QoS) 31

QoS Requirements for Voice and Video 32

QoS Deployment Architectures 33

Classification and Marking 34

Layer 2 Marking 34

Layer 3 Marking 35

Network-Based Application Recognition 36

Classification Service Classes 37

Classification and Marking for Softclients 37

Classification and Marking for Video Traffic 38

Queuing 38

Cisco Queuing Toolset 39

Weighted Random Early Detection 40

WAN QoS Considerations 41

Traffic Policing and Shaping 41

Link Efficiency Mechanisms 43

Compressed RTP 43

Link Fragmentation and Interleaving 43

Multilink PPP 44

Frame Relay Forum 12 44

Voice Activity Detection 45

LAN QoS Considerations 46

QoS Trust Boundary 46

QoS Considerations for WLAN Endpoints 47

QoS Considerations for Virtual Unified Communications with Cisco UCS 48

Medianet 49

Medianet QoS Classes of Service 52

Chapter 3 Telephony Standards and Protocols 55

Voice and Video Codecs 55

VoIP Media Transmission Protocols 57

VoIP Signaling Protocols 58

Skinny Client Control Protocol 58

Media Gateway Control Protocol 61

Session Initiation Protocol 65

SIP Session Description Protocol 71

SIP Binary Floor Control Protocol 72

H.323 Gateway, Gatekeeper, and RAS 73

H.323 Gateway 75

H.323 Gatekeeper 76

H.225 and RAS Signaling 77

H.239-Based Dual Video Channels and Cisco Video Equipment Support 82

Analog Telephony 83

Foreign Exchange Office 83

FXO Disconnect 83

Foreign Exchange Station 84

E&M84

Digital Telephony 85

Integrated Services Digital Network 85

Q Signaling Protocol 87

Channel Associated Signaling 87

T1 CAS 87

E1 R2 88

Non-Facility Associated Signaling 88

Analog and Digital Telephony Call Signaling Elements 89

Direct Inward Dial 89

Caller ID 89

Echo 90

Trans Hybrid Loss 90

Fax and Modem Protocols 91

Fax Services over IP Network 91

Modem Services over IP Network 93

Chapter 4 Cisco Unified Communications Manager 95

CUCM Redundancy and Device Registration 95

CUCM Device Pool 96

Common Device Configuration 98

Codec Selection 99

CUCM Features 100

Call Park and Directed Call Park 100

Call Pickup and Group Pickup 101

Meet-Me Conference 102

Busy Lamp Field Speed Dials 102

CUCM Native Call Queuing 102

Call Hunting 103

CUCM Media Resources 104

Annunciator 104

Conference Bridge 104

Media Termination Point 105

Transcoder 105

Music on Hold 105

Media Resource Group and Media Resource Group List 106

Trusted Relay Point 107

CUCM Dial Plan 107

Partitions and Calling Search Spaces 108

Translation Patterns 109

Route Patterns 109

Route List 109

Route Group 110

Globalized Call Routing 110

Local Route Group 111

Time-of-Day Routing 112

Application Dial Rules 112

Directory Dial Rules 113

SIP Dial Rules 113

CUCM Digit Manipulation 114

CUCM H.323 and SIP Trunks 116

SIP Uniform Resource Identifier Dialing 117

Intercluster Lookup Service 119

Blended Addressing 122

CUCM Call Admission Control 122

Locations-Based CAC 123

Enhanced LCAC 124

Resource Reservation Protocol 126

RSVP SIP Preconditions 128

CUCM-Based Call Recording and Silent Monitoring 129

CUCM Mobility 133

Extension Mobility and Extension Mobility Cross Cluster 133

Device Mobility 135

Mobile Connect 136

Mobile Voice Access 138

Service Advertisement Framework and Call Control Discovery 140

SAF Architecture 140

Call Control Discovery Service 142

Chapter 5 Cisco Unified Communications Security 145

Security Policy 145

Threats to Cisco Collaboration Networks 146

Layer 1 Security 146

Layer 2 Security 147

Port Security 147

DHCP Snooping 148

Root Guard and BPDU Guard 149

Dynamic ARP Inspection 149

802.1x 149

Layer 3 Security 151

RFC 2827 Filtering 151

IP Source Guard 151

Unicast Reverse Path Forwarding 152

Routing Protocols Security 152

Router Hardening 152

(Firewall) Security for Layers 4 Through 7 152

Firewall Traversal Mechanisms 153

NAT Traversal 153

IPsec Tunnels 154

IP-Based ACLs 154

Port-Based ACLs 154

Cisco ASA Proxy Features 155

Cisco VPN Phone 156

Application Layer Security 157

CUCM Security By Default 158

CUCM Security Modes 158

CTL Client and CTL File 159

Cisco Unified IP Phone Certificates 161

SRTP and TLS 161

Preventing Toll Fraud 162

CUCM Class of Service 162

Cisco Voice Gateway Toll-Fraud Prevention Application 163

Voice Gateway Class of Restriction 164

Cisco Unity Connection Restriction Rules 165

Chapter 6 Cisco Unity Connection 167

Cisco Unity Connection High Availability 167

Cisco Unity Connection Integration with CUCM and CUCME 168

Cisco Unity Connection SCCP Voicemail Integration with CUCM 169

Cisco Unity Connection SIP Voicemail Integration with CUCM 171

Cisco Unity Connection SCCP Voicemail Integration with CUCME 172

Cisco Unity Connection SIP Voicemail Integration with CUCME 174

Cisco Unity Connection Dial Plan 175

Call Handlers 176

Cisco Unity Connection System Call Handlers 176

Cisco Unity Connection Directory Handlers 178

Cisco Unity Connection Interview Handlers 179

Cisco Unity Connection Single Inbox 180

Cisco Unity Connection Visual Voicemail 183

Voice Mail for Cisco Jabber 184

Cisco Unity Connection Voicemail Networking 186

Intrasite Networking 187

Intersite Networking 188

Voice Profile for Internet Email (VPIM) Networking 189

Chapter 7 Cisco Unified IM and Presence 191

Cisco Unified Communications Manager IM and Presence Components 191

Cisco Unified CM IM and Presence Cluster 192

Cisco Unified CM IM and Presence Server Integration with CUCM 193

Cisco Jabber 197

Presence Federation 198

Intradomain Federation 199

Interdomain Federation 201

Presence Cloud Solutions 202

Group Chat and Compliance 204

Group Chat 204

Logging and Compliance 205

Client-Side IM Logging (History) 205

Server-Side IM Logging (Compliance) 206

Chapter 8 Cisco Unified Contact Center Express 209

Cisco UCCX Architecture 209

Cisco UCCX Components and Subsystems 210

UCCX ACD/ICD, IVR, and CTI Functions 211

UCCX ACD Functions 211

UCCX CTI Functions 213

UCCX IVR Functions 213

UCCX Deployment Models 214

UCCX Call Flow 215

UCCX Integration with CUCM 216

UCCX Scripting Components 218

Chapter 9 Cisco IOS Unified Communications Applications 225

Cisco Unified Communications Manager Express 225

Basic Cisco Unified CME Setup 226

Cisco Unified CME-Based SCCP Phone Registration 227

Cisco Unified CME-Based SIP Phone Registration 229

Cisco Unified CME Single Number Reach 230

Survivable Remote Site Telephony 232

MGCP Fallback 236

Multicast Music on Hold in SRST 237

Cisco IOS Dial Plan 238

Voice Translation Rules and Profiles 239

Cisco IOS Dial-Peer Matching Logic 242

Cisco IOS Media Resources 244

Cisco IOS DSP Management 244

Cisco IOS Conferencing Resources 245

Cisco IOS Transcoding Resources 246

Cisco Unified CME-Based Media Resources 246

Cisco Unified CME Conferencing and Transcoding 246

Cisco IOS-Based Call Queuing 249

Cisco Unified CME Basic Automatic Call Distribution 249

Voice Hunt Groups 252

Call Blast 253

Cisco Unity Express 254

Cisco Unified CME and CUE Integration 254

CUE Message Waiting Indicator 256

Outcalling 256

(SIP) Subscribe Notify 257

Unsolicited Notify 257

CUE Web Inbox 258

CUE VoiceView Express 258

CUE Auto-Attendant 259

CUE Scripting 261

CUE Voice Profile for Internet Email 263

Cisco IOS Call Admission Control 266

Local CAC 267

Reservation-Based CAC 267

Measurement-Based CAC 268

Cisco IOS CDR Accounting 268

File Accounting 269

Syslog-Based CDR Accounting 269

RADIUS-Based CDR Accounting 269

Cisco Service Advertisement Framework and Call Control Discovery 270

Cisco Unified Border Element 272

CUBE Redundancy 273

CUBE SIP Profiles 277

CUBE Early Offer and Delayed Offer 278

CUBE DTMF Interworking 279

CUBE Mid-Call Signaling 281

Chapter 10 Cisco Collaboration Network Management 283

CUCM Serviceability and OS Administration 283

CUCM Database Replication 283

CUCM Service Activation 284

CUCM Call Detail Records and Call Management Records 288

CUCM Disaster Recovery 289

User Management 290

Cisco EnergyWise 292



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