Cisco AVVID and IP Telephony Design and Implementation

by Syngress

• ISBN13: 9781928994831
• ISBN10: 1928994830
• Format: Paperback
• Copyright: 2002-01-04
• Publisher: Syngress Media Inc

Summary

Corporate demand for AVVID solutions is rapidly increasing - engineers will need this book Cisco AVVID (Architecture for Voice, Video and Integrated Data), the latest development from Cisco Systems, is redefining the way businesses communicate. AVVID allows businesses to transmit voice, data, and video over a single integrated architecture called a "multiservice" or "converged" network. Cisco AVVID Design & Implementation is designed to be a complete desk-reference for network administrators and engineers responsible for a complicated AVVID network. Covering history, protocols, hardware, servers, switches, bridges, routers, and discussions about implementation issues, realities of cost, requirements and network limitations. Engineers will learn how to design and build a comprehensive Cisco AVVID network infrastructure. Follows on from the successful Configuring Cisco AVVID Cisco engineers and other IT professionals will find this an indispensable guide when implementing AVVID Author is Systems Engineer at Cisco Unrivalled web support at [e-mail]

Table of Contents

Foreword	xxv
Old World Technologies	1	(24)
Introduction	2	(1)
Introduction to PBXs	3	(4)
Designing with Legacy Systems in Mind	4	(3)
Looking Inside the PBX	7	(5)
Implementing Extension Termination	7	(1)
Implementing Trunk Termination	8	(1)
Call Processing and System Logic	8	(1)
Switching	9	(1)
Establishing Links Outside the PBX	10	(2)
Interpreting PBX Terminology	12	(4)
Working with Analog Systems	16	(2)
Benefiting from Digital Systems	18	(1)
Providing Video Services	18	(3)
Summary	21	(1)
Solutions Fast Track	22	(1)
Frequently Asked Questions	23	(2)
New World Technologies	25	(40)
Introduction	26	(1)
Introduction to IP Telephony	26	(3)
Simplifying Administration	27	(1)
Utilizing Toll Bypass	27	(1)
Linking Communications with Unified Messaging	28	(1)
Choosing to Implement IP Telephony	28	(1)
IP Telephony Components	29	(12)
Cisco CallManager	29	(1)
The CallManager Platform	30	(1)
IP Telephony Protocols	31	(1)
CallManager 3.x	32	(1)
Clustering	32	(2)
CallManager Hardware	34	(3)
Cisco IP Phones	37	(2)
Cisco Gateways	39	(1)
Unity Voice-Mail/Unified Messaging Solutions	40	(1)
Exploring IP Telephony Applications	41	(5)
Introducing Cisco's IP Telephony Applications	41	(1)
Cisco Web Attendant	41	(1)
Cisco IP SoftPhone	42	(1)
Internet Communications Software	43	(1)
Interactive Voice Response	44	(1)
AutoAttendant	45	(1)
Third-Party IP Telephony Applications	45	(1)
Interactive Intelligence's Solutions	45	(1)
Latitude Communication's Solutions	46	(1)
Intelligent Telemanagement Solutions	46	(1)
Introduction to Video	46	(4)
Understanding Video Components	47	(1)
Gateways	47	(1)
Gatekeepers	48	(1)
Multi-Point Control Units	48	(1)
Video Terminal Adapter	48	(1)
Endpoint Devices	48	(1)
Cisco IP/TV	49	(1)
Enhancing Network Infrastructure	50	(8)
Using Routers for a Converged Network	50	(1)
Analog Voice Interfaces	50	(1)
Digital Voice Interfaces	51	(2)
Cisco Switches	53	(1)
Exploring Inline Power Options	54	(1)
Inline Power Modules	55	(1)
Power Patch Panel	55	(1)
Power Cube	56	(1)
Different Queuing for Video/Voice	56	(2)
What Does the Future Hold?	58	(2)
Summary	60	(1)
Solutions Fast Track	61	(2)
Frequently Asked Questions	63	(2)
AVVID Gateway Selection	65	(36)
Introduction	66	(1)
Introduction to AVVID Gateways	66	(1)
Understanding the Capabilities of Gateway Protocols	67	(2)
Choosing a Voice Gateway Solution	69	(20)
Cisco 1750	73	(1)
Cisco 2600	73	(1)
Cisco 3600	74	(1)
VG-200	75	(1)
Configuring and Installing a VG200 with MGCP	75	(5)
Cisco MC3810	80	(1)
Cisco 7200/7500	81	(1)
Cisco AS5300/AS5800	82	(1)
Cisco DT-24+/DE-30+	83	(1)
Catalyst 6000	84	(1)
Catalyst 4000	85	(1)
Catalyst 4224	86	(1)
ICS 7750	87	(1)
DPA 7610/7630 Voice Mail Gateway	88	(1)
Choosing a Video Gateway Solution	89	(4)
IP/VC 3510 MCU	89	(1)
IP/VC 3520 and 3525 Gateway	89	(1)
IP/VC 3530 VTA	90	(2)
IP/VC 3540	92	(1)
Multimedia Conference Manager Services	93	(3)
Summary	96	(1)
Solutions Fast Track	97	(3)
Frequently Asked Questions	100	(1)
AVVID Clustering	101	(30)
Introduction	102	(1)
CallManager Clustering	102	(13)
Why Cluster?	103	(1)
CallManager Cluster Communications	104	(1)
Intra-Cluster Communication	104	(1)
Inter-Cluster Communication	105	(1)
Redundancy within a CallManager Cluster	106	(2)
Balanced Call Processing	108	(1)
Designing CallManager Clusters	108	(2)
Device Weights	110	(2)
Campus Clustering	112	(1)
Guidelines for Multiple Clusters	113	(2)
Video Clustering	115	(4)
Multipoint Controller Units	116	(1)
Cascading MCUs	117	(2)
Designing Clusters: A Case Study	119	(6)
Gathering Background Information	120	(1)
Coming to a Possible Solution	121	(1)
What Are the Videoconferencing Requirements?	121	(1)
Does the Customer Need Clustering?	121	(1)
Does the Customer Need Multiple Clusters?	122	(1)
What Hardware Is Required?	123	(1)
How Is Redundancy Achieved?	123	(1)
Configuration Summary	124	(1)
Summary	125	(1)
Solutions Fast Track	126	(2)
Frequently Asked Questions	128	(3)
Voice and Video Gatekeeper Design	131	(38)
Introduction	132	(1)
Understanding Gatekeeper Basics	132	(20)
What Is a Gatekeeper?	132	(1)
Gatekeeper Functions	133	(1)
Required Functions	133	(2)
Optional Functions	135	(1)
Types of Gatekeepers	136	(1)
Multimedia Conference Manager	136	(1)
High-Performance Gatekeeper	137	(1)
Embedded Gatekeepers	138	(1)
Comparing Cisco Gatekeepers	138	(1)
Gatekeeper Flow Diagrams	139	(2)
Design Considerations	141	(1)
Using Bandwidth Limits in Your Network	142	(1)
Using Accounting within Your Network	143	(1)
Using Multicast or Unicast Addresses to Locate the Gatekeeper	144	(1)
Designing a Large H.323 Network	144	(1)
Zone Designs	145	(1)
Implementing Zones in Your Network	146	(2)
Alternate Zone Designs	148	(1)
Routing Calls between Zones	148	(4)
A Gatekeeper's Role in Voice and Video Networking	152	(6)
Choosing a Gatekeeper Platform	153	(1)
Selecting a Router Hardware Platform	153	(1)
Selecting an IOS	154	(1)
Redundancy	154	(1)
Configuring HSRP between Gatekeepers	155	(1)
Using Technology Prefixes for Redundancy	156	(1)
Using Zone Prefixes and Gatekeeper Clusters for Redundancy	157	(1)
Placing and Configuring Gatekeepers: A Case Study	158	(8)
Configuring Local Zones	159	(1)
Configuring the Zone Subnet	159	(1)
Configuring Zone Bandwidth	160	(1)
Configuring Remote Zones	161	(1)
Configuring the Dial Plan	161	(2)
Configuring Gateway Type	163	(1)
Configuring Gatekeeper HSRP	164	(1)
Following the Call Flow	165	(1)
Summary	166	(1)
Solutions Fast Track	166	(1)
Frequently Asked Questions	167	(2)
DSPs Explained	169	(22)
Introduction	170	(1)
DSP Provisioning	170	(2)
Conferencing and Transcoding	172	(2)
Catalyst 4000 Modules	174	(2)
Catalyst 6000 Modules	176	(5)
NM-HDV Modules	181	(2)
Sample Design Scenarios	183	(3)
Branch Office	183	(1)
Enterprise Campus	184	(2)
Summary	186	(1)
Solutions Fast Track	186	(3)
Frequently Asked Questions	189	(2)
AVVID Applications	191	(30)
Introduction	192	(1)
Creating Customer Contact Solutions	193	(12)
Defining the Customer Contact Channels	195	(1)
Cisco IPCC	195	(10)
Providing Voice Recording Options	205	(3)
Call Accounting, Billing, and Network Management Solutions	208	(3)
Call Accounting and Billing Solutions	208	(3)
Designing Voice and Unified Messaging Solutions	211	(3)
Understanding Other Voice Applications	214	(2)
Summary	216	(1)
Solutions Fast Track	217	(2)
Frequently Asked Questions	219	(2)
Advanced QoS for AVVID Environments	221	(58)
Introduction	222	(1)
Using the Resource Reservation Protocol	223	(13)
What Is RSVP?	224	(2)
What RSVP Is Not	226	(1)
How Does RSVP Work?	227	(1)
Session Startup	227	(3)
Session Maintenance and Tear-Down	230	(1)
What Kind of QoS Can I Request with RSVP?	231	(1)
Reservation Styles and Merging Flows	232	(2)
Why Do I Need RSVP on My Network?	234	(1)
Advantages of Using RSVP	235	(1)
Disadvantages of Using RSVP	235	(1)
Using Class-Based Weighted Fair Queuing	236	(7)
How Does CBWFQ Work?	236	(2)
Why Do I Need CBWFQ on My Network?	238	(2)
Case Study: Using a SQL Application on a Slow WAN Link	240	(1)
Case Study: Total Traffic Classification (CBWFQ in a DiffServ Model)	241	(2)
RSVP in Conjunction with CBWFQ	243	(1)
Using Low Latency Queuing	243	(4)
How Does LLQ Work?	244	(1)
Classifying Priority Traffic	245	(1)
Allocating Bandwidth	245	(1)
Limitations and Caveats	246	(1)
Why Do I Need LLQ on My Network?	246	(1)
Using Weighted Random Early Detection	247	(4)
How Does WRED Work?	247	(1)
WRED and IP Precedence	248	(1)
WRED and RSVP	249	(1)
WRED Algorithm	250	(1)
Why Do I Need WRED on My Network?	250	(1)
Using Generic Traffic Shaping and Frame Relay Traffic Shaping	251	(9)
Token Bucket	252	(1)
How Does GTS Work?	253	(1)
Why Do I Need GTS on My Network?	254	(1)
How Does FRTS Work?	255	(1)
Why Do I Need FRTS on My Network?	256	(4)
Running in Distributed Mode	260	(3)
Features Supported in Distributed Mode	260	(1)
IOS Versions	261	(1)
Operational Differences	261	(1)
Restrictions	262	(1)
Using Link Fragmentation and Interleaving	263	(4)
How Does LFI Work?	265	(1)
LFI with Multilink Point-to-Point Protocol	266	(1)
How Can This Be Useful on My Network?	266	(1)
Understanding RTP Header Compression	267	(3)
How Does RTP Header Compression Work?	267	(2)
When Would I Need RTP Header Compression?	269	(1)
Summary	270	(2)
Solutions Fast Track	272	(3)
Frequently Asked Questions	275	(4)
AVVID Dial Plans	279	(56)
Introduction	280	(1)
Problems Facing the Integration of Voice and Data	280	(1)
What Is a Dial Plan?	281	(12)
Configuring Dial Peers for Use	283	(1)
Configuring Dial Peers for POTS	283	(3)
Configuring Dial Peers for VoIP	286	(4)
Dial Peers for Inbound and Outbound Calls	290	(2)
Route Pattern (On-Net)	292	(1)
Routing Outbound Calls through the PSTN	293	(1)
Cisco CallManager Dial Plans	293	(13)
Internal Calls	295	(1)
External Calls	296	(1)
Route Pattern	297	(1)
What Is Digit Manipulation, and How Do You Configure It?	297	(2)
Route List	299	(1)
Telephony Devices	300	(1)
Digit Translation Tables	300	(3)
Fixed-Length Dial Peers versus Variable-Length Dial Peers	303	(2)
What Is Two-Stage Dialing?	305	(1)
Creation of Calling Restrictions and Configuration of Dial Plan Groups	306	(3)
Partitioning with Cisco CallManager	307	(1)
Creating a Calling Search Space	307	(2)
Guidelines for the Design and Implementation of Dial Plans	309	(6)
Setting up Single-Site Campuses	309	(3)
Design Considerations for the Creation of a Dial Plan	312	(3)
Creating a Dial Plan for a Multisite Organization	315	(1)
The Role and Configuration of a Cisco CallManager and Gatekeeper	315	(4)
The Cisco CallManager Model	316	(1)
The Gatekeeper Model	316	(1)
The Hybrid Model	317	(2)
Video Dial Plan Architecture	319	(6)
Gateway	321	(1)
Proxy Gateway	321	(1)
The H.323 Gatekeeper	322	(1)
Configuring Video Dial Peers	323	(2)
Summary	325	(1)
Solutions Fast Track	326	(6)
Frequently Asked Questions	332	(3)
Designing and Implementing Single Site Solutions	335	(56)
Introduction	336	(1)
Using AVVID Applications in IP Telephony Single Site Solutions	336	(18)
Designing the Voice over IP Network	338	(1)
Considerations for the LAN	338	(4)
Connecting the Site to External Telephony Systems	342	(1)
Connecting the Single Site Back to the Corporate System	343	(1)
Connecting the Single Site Back to Other Small Sites	344	(2)
Choosing a Voice-Capable Gateway	346	(1)
Types of Voice-Capable Gateways	346	(1)
Cost-Effective Gateways for Small Sites	347	(1)
Cisco IOS Solutions for Voice Gateways	348	(1)
Problems Using the Voice Gateway for Combined Data Access	349	(1)
Modifying an Existing Network to Support Voice over IP	349	(1)
This Must Be a Pure Cisco Solution!	350	(2)
Deciding Which Type of Public Telephony Access to Use	352	(1)
Performing a Network Assessment of the Infrastructure	353	(1)
Engineering a Mixed Vendor Solution	354	(1)
Using AVVID Applications in Single-Site Solutions	354	(17)
Using Cisco CallManager	355	(1)
Understanding the Component Parts of CallManager	355	(1)
Installing CallManager	356	(1)
Performing Basic Configuration Tasks	357	(5)
Performing Advanced Configuration Tasks	362	(2)
Troubleshooting Problems with CallManager	364	(1)
Using Cisco Unity Voice Messaging	365	(1)
A Word about Exchange Server v5.5	366	(1)
Installing the Unity Messaging System	366	(1)
Creating Unity User Accounts from Exchange Server's Mailboxes	366	(2)
Using the IP SoftPhone	368	(1)
Introducing the SoftPhone	368	(1)
Installing SoftPhone	369	(1)
Configuring SoftPhone	369	(1)
Troubleshooting SoftPhone Issues	370	(1)
Using AVVID Applications in Video Single-Site Solutions	371	(14)
Designing the IP Network for Multicasting	371	(2)
Local Area Networks	373	(2)
Wide Area Network Considerations	375	(1)
Remote Access Solutions for Video Presentations	376	(1)
Cisco's IP Television Solution	377	(1)
Uses for IP/TV	378	(1)
Devices Used in IP/TV Solutions	379	(1)
Single Site Solutions for IP/TV	380	(1)
Cisco's IP Videoconferencing Solution	381	(1)
Equipment Uses in IP/VC Solutions	382	(1)
Good Examples of Using IP/VC for Small Sites	383	(1)
Why IP/VC May Be Bad for Single Sites	383	(2)
Summary	385	(1)
Solutions Fast Track	385	(2)
Frequently Asked Questions	387	(4)
Designing and Implementing Multisite Solutions	391	(50)
Introduction	392	(1)
IP Telephony Multisite Centralized Call Processing Solutions	392	(20)
Wide Area Network Considerations	393	(1)
The Gatekeeper Function	394	(1)
Voice-Capable Gateways	395	(1)
Choosing Frame Relay or Leased Lines for Site-to-Site Connectivity	396	(5)
Using the Gateway for Data and Firewall Access Control	401	(1)
Handling LAN Problems for Multiple Sites	402	(1)
Preparing the Head Office LAN to Support CallManager Clusters	403	(2)
Making Changes to the LAN to Handle Large Call Volumes	405	(1)
Providing Multiple Ingress/Egress Points to Sites	405	(2)
Designing the CallManager Centralized Solution	407	(1)
Enterprise Dial Plans	407	(2)
Installing Backup CallManagers for Redundancy	409	(1)
Assuring Constant User Connectivity to CallManager	409	(2)
Disaster Recovery for Centralized CallManager Solutions	411	(1)
IP Telephony Multisite Distributed Call Processing Solutions	412	(10)
CallManager Designs and Issues	412	(1)
Extending Enterprise Dial Plans to the Field CallManagers	413	(1)
Supporting Distributed Call Processing with Overall Design Changes	414	(1)
Disaster Recovery for Distributed CallManager Solutions	415	(1)
WAN Designs that Support Distributed CallManager	416	(1)
Full Meshed WAN Designs	416	(2)
Partially Meshed WAN Designs	418	(1)
Determining Network Impact of Distributed CallManager Clusters	419	(1)
LAN Issues for CallManager Clusters	419	(1)
WAN Performance between CallManagers	420	(1)
Unity Messaging Issues	421	(1)
Multisite AVVID Solutions	422	(14)
Designing the Enterprise IP Network for Multicasting	422	(2)
Configuring the Routers to Support Multicasting	424	(2)
Wide Area Network Considerations	426	(1)
Cisco's IP Television Solution	427	(1)
Using IP/TV with Branch Offices	427	(2)
Choosing Devices for Enterprise IP/TV Solutions	429	(1)
Cisco's IP Videoconferencing Solution	429	(1)
Using IP/VC for Multiple Sites	430	(1)
Why IP/VC Can Be Damaging to an Enterprise	431	(1)
Creating the Auto Attendant	431	(2)
Using Web Attendant	433	(1)
IP Interactive Voice Response System	433	(3)
Summary	436	(1)
Solutions Fast Track	437	(1)
Frequently Asked Questions	438	(3)
Cisco AVVID and IP Telephony Design & Implementation Fast Track	441	(24)
Index	465