Implementing Cisco Unified Communications Voice over IP and QoS (CVOICE)
Foundation Learning Guide
Foundation Learning for the CCNP® Voice (CVOICE) 642-437 Exam
Kevin Wallace, CCIE® No. 7945
Implementing Cisco Unified Communications Voice over IP and QoS (CVOICE) Foundation Learning Guide is a Cisco®-authorized, self-paced learning tool for CCNP Voice foundation learning. Developed in conjunction with the Cisco CCNP Voice certification team, it covers all aspects of planning, designing, and deploying Cisco VoIP networks and integrating gateways, gatekeepers, and QoS into them.
Updated throughout for the new CCNP Voice (CVOICE) Version 8.0 exam (642-437), this guide teaches you how to implement and operate gateways, gatekeepers, Cisco Unified Border Element, Cisco Unified Communications Manager Express, and QoS in a voice network architecture. Coverage includes voice gateways, characteristics of VoIP call legs, dial plans and their implementation, basic implementation of IP phones in Cisco Unified Communications Manager Express environment, and essential information about gatekeepers and Cisco Unified Border Element. The book also provides information on voice-related QoS mechanisms that are required in Cisco Unified Communications networks.
Fourteen video lab demonstrations on the accompanying CD-ROM walk you step by step through configuring DHCP servers, CUCME autoregistration, ISDN PRI circuits, PSTN dial plans, DID, H.323 and MGCP gateways, VoIP dial peering, gatekeepers, COR, AutoQoS VoIP, and much more.
Whether you are preparing for CCNP Voice certification or simply want to gain a better understanding of VoIP and QoS, you will benefit from the foundation information presented in this book.
- Voice gateways, including operational modes, functions, related call leg types, and routing techniques
- Gateway connections to traditional voice circuits via analog and digital interfaces
- Basic VoIP configuration, including A/D conversion, encoding, packetization, gateway protocols, dial peers, and transmission of DTMF, fax, and modem tones
- Supporting Cisco IP Phones with Cisco Unified Communications Manager Express
- Dial plans, including digit manipulation, path selection, calling privileges, and more
- Gatekeepers, Cisco Unified Border Elements, and call admission control (CAC) configuration
- QoS issues and mechanisms
- Unique DiffServ QoS characteristics and mechanisms
- Cisco AutoQoS configuration and operation
Companion CD-ROM
The CD-ROM that accompanies this book contains 14 video lab demonstrations running approximately 90 minutes.
This book is in the Foundation Learning Guide Series. These guides are developed together with Cisco® as the only authorized, self-paced learning tools that help networking professionals build their understanding of networking concepts and prepare for Cisco certification exams.
Autorentext
Kevin Wallace, CCIE No. 7945, is a certified Cisco instructor and holds multiple Cisco certifications, including the CCSP, CCVP, CCNP, and CCDP, in addition to multiple security and voice specializations. With Cisco experience dating back to 1989 (beginning with a Cisco AGS+ running Cisco IOS 7.x), Kevin has been a network design specialist for the Walt Disney World Resort, a senior technical instructor for SkillSoft/Thomson NETg/KnowledgeNet, and a network manager for Eastern Kentucky University. Kevin holds a bachelor's of science degree in electrical engineering from the University of Kentucky. Also, Kevin has authored multiple books for Cisco Press, including CCNP TSHOOT 642-832 Official Certification Guide, Routing Video Mentor, and the Video Mentor component of the TSHOOT 642-832 Cert Kit, all of which target the current CCNP certification. Kevin lives in central Kentucky with his wife, Vivian, and two daughters, Stacie and Sabrina. You can follow Kevin online through the following social media outlets:
Web page: http://1ExamAMonth.com
Facebook Fan Page: Kevin Wallace Networking
Twitter: http://twitter.com/kwallaceccie
YouTube: http://youtube.com/kwallaceccie
Network World blog: http://nww.com/community/wallace
iTunes: 1ExamAMonth.com Podcast
Inhalt
Introduction xxx
Chapter 1 Introducing Voice Gateways 1
The Role of Gateways 1
Traditional Telephony Networks 2
Cisco Unified Communications Overview 3
Cisco Unified Communications Architecture 4
Cisco Unified Communications Business Benefits 5
Cisco Unified Communications Gateways 6
Gateway Operation 7
Comparing VoIP Signaling Protocols 10
Gateway Deployment Example 12
IP Telephony Deployment Models 13
Single-Site Deployment 14
Multisite WAN with Centralized Call-Processing Deployment 16
Multisite WAN with Distributed Call-Processing Deployment 20
Clustering over the IP WAN Deployment 24
Modern Gateway Hardware Platforms 27
Cisco 2900 Series Integrated Services Routers 27
Cisco 3900 Series Integrated Services Routers 27
Well-Known Older Enterprise Models 27
Cisco 2800 Series Integrated Services Routers 28
Cisco 3800 Series Integrated Services Routers 29
Specialized Voice Gateways 30
Cisco ATA 186 30
Cisco VG248 Analog Phone Gateway 30
Cisco AS5350XM Series Universal Gateway 30
Cisco AS5400 Series Universal Gateway Platforms 31
Cisco 7200 Series Routers 32
Gateway Operational Modes 32
Voice Gateway Call Legs 33
Voice-Switching Gateway 34
VoIP Gateway 34
Cisco Unified Border Element 35
How Voice Gateways Route Calls 36
Gateway Call-Routing Components 36
Dial Peers 37
Call Legs 39
Configuring POTS Dial Peers 41
Matching a Dial Peer 43
Matching Outbound Dial Peers 48
Default Dial Peer 49
Direct Inward Dialing 50
Two-Stage Dialing 51
One-Stage Dialing 54
Configuration of Voice Ports 57
Analog Voice Ports 58
Signaling Interfaces 59
Analog Voice Port Interfaces 59
Analog Signaling 61
FXS and FXO Supervisory Signaling 61
Analog Address Signaling 64
Informational Signaling 65
E&M Signaling 66
E&M Physical Interface 68
E&M Address Signaling 68
Configuring Analog Voice Ports 69
FXS Voice Port Configuration 69
FXO Voice Port Configuration 72
E&M Voice Port Configuration 74
Trunks 76
Analog Trunks 77
Centralized Automated Message Accounting Trunk 80
Direct Inward Dialing Trunk 83
Timers and Timing 85
Verifying Voice Ports 86
Digital Voice Ports 90
Digital Trunks 90
T1 CAS 92
E1 R2 CAS 94
Nonfacility Associated Signaling 99
Configuring a T1 CAS Trunk 100
Configuring T1 CAS Trunks: Inbound E&M FGD and Outbound FGD EANA Example 108
Configuring an E1 R2 Trunk Example 110
Configuring an ISDN Trunk 112
Verifying Digital Voice Ports 117
Cross-Connecting a DS0 with an Analog Port 123
Echo Cancellation 124
Echo Origin 124
Talker Echo 125
Listener Echo 125
Echo Cancellation 125
Echo Canceller Operation 126
Echo Canceller Components 126
Configuring Echo Cancellation 127
Voice Packets Processing with Codecs and DSPs 128
Codecs 128
Impact of Voice Samples and Packet Size on Bandwidth 130
Evaluating Quality of Codecs 130
Mean Opini…