Cover image for Cisco IP Telephony: Planning, Design, Implementation, Operation, and Optimization

Cisco IP Telephony: Planning, Design, Implementation, Operation, and Optimization

Author Salman Asadullah , Ramesh Kaza
Release Date: 2005/02/01
ISBN: 1587051575
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Book Description

A guide to successful deployment of the Cisco IP Telephony solution

  • Real-world case studies from the Cisco design consulting engineers who developed the PDIOO process provide practical advice on all stages of successful IPT deployment

  • Concise understanding of the PDIOO phases enables architects and engineers to successfully deploy the Cisco IPT solution

  • Division of the process into PDIOO phases provides a logical and defined guide for network engineers and architects as they proceed through each of the phases in deploying the Cisco IPT solution

  • Includes detailed questionnaires for each phase of deployment in the PDIOO cycle—a great aid in understanding customer networks and requirements

  • Network infrastructure design, call processing infrastructure design and applications, and voice-mail system design are covered in depth

    • Cisco® IP Telephony (IPT) solutions are being deployed at an accelerated rate, and network architects and engineers need to understand the various phases involved in successful deployment: planning, design, implementation, operation, and optimization (PDIOO). On the road to that understanding, those involved need to collect information for each phase of deployment, and then follow through with the best architecture, deployment model, and implementation based on the data collected.

    Cisco IP Telephony: Planning, Design, Implementation, Operation, and Optimization is a guide for network architects and engineers as they deploy the Cisco IPT solution. With this book, you will master the PDIOO phases of the IPT solution, beginning with the requirements necessary for effective planning of a large-scale IPT network. From there, you’ll follow a step-by-step approach to choose the right architecture and deployment model. Real-world examples and explanations with technical details, design tips, network illustrations, and sample configurations illustrate each step in the process of planning, designing, implementing, operating, and optimizing a chosen architecture based on information you have collected.

    In-depth instruction on each PDIOO phase provides specific details about the tasks involved and best practices for successful implementation of the IPT solution. This book also contains predesigned questionnaires and PDIOO assistance tools that help you determine the requirements of each phase of the PDIOO cycle.

    Authors Ramesh Kaza and Salman Asadullah have been involved with Cisco IPT solutions from the beginning and have planned, designed, and implemented major IPT networks using the guidelines found here. Cisco IP Telephony: Planning, Design, Implementation, Operation, and Optimization provides the step-by-step explanations, details, and best practices acquired by the authors while working with the top Cisco IPT customers.

    This book is part of the Networking Technology Series from Cisco Press®, which offers networking professionals valuable information for constructing efficient networks, understanding new technologies, and building successful careers.

    Table of Contents

    1. Copyright
      1. Dedications
    2. About the Authors
    3. About the Technical Reviewers
    4. Acknowledgments
    5. Foreword
    6. Introduction
      1. Goals and Methods
      2. Target CallManager Release
      3. How This Book Is Organized
      4. How to Read This Book
    7. I. Overview of Technology, Protocols, and the PDIOO Methodology
      1. 1. Cisco IP Telephony Solution Overview
        1. Legacy Voice and Data Networks
        2. Next-Generation Multiservice Networks
        3. Networks Based on Cisco AVVID
        4. Signaling and Transport Protocols
          1. Telco Signaling Protocols
            1. Analog Signaling
            2. Digital Signaling
              1. CAS
              2. CCS
          2. VoIP Protocols
            1. H.323
            2. SIP
            3. MGCP
            4. SCCP
            5. RTP/RTCP
        5. IP Telephony Components
          1. Network Infrastructure
          2. Call Processing
            1. CallManager Clustering
            2. Device Weights
            3. Dial Plan Weights
          3. CallManager Directory Services
          4. IP Telephony Endpoints
            1. Cisco IP Phones
            2. SoftPhones
            3. Wireless IP Phones
            4. Voice Gateways
            5. Survivable Remote Site Telephony
            6. Cisco CallManager Express
          5. Call Admission Control
            1. CallManager Locations-Based CAC
            2. Gatekeeper CAC
          6. Fax
          7. Media Resources
          8. Applications
            1. Customer Response Solution
              1. IVR
              2. IPCC Express
            2. Cisco Unity
            3. Cisco Emergency Responder
            4. Cisco Conference Connection
            5. IP Phone Services
        6. IP Telephony Deployment Architectures
          1. Single-Site Deployment
          2. Centralized Call Processing with Remote Branches
          3. Distributed Call Processing Deployment
          4. Clustering over the IP WAN
            1. Local Failover Deployment Model
            2. Remote Failover Deployment Model
        7. Call-Flow Scenarios
          1. IP Phone-to-IP Phone Call
          2. Intracluster Call
          3. Intercluster Call
            1. Intercluster Call with the Gatekeeper
          4. Off-Net Calls
            1. Using MGCP Gateway
            2. Using H.323 Gateway
        8. Summary
      2. 2. Planning, Design, Implementation, Operation, and Optimization Overview
        1. Planning Phase
        2. Design Phase
          1. Network Infrastructure Design
          2. Design of Call Processing Infrastructure and Applications
          3. Software Version Evaluation
          4. Design Validation
        3. Implementation Phase
        4. Operation and Optimization Phase
        5. Summary
    8. II. Large-Scale IPT and Voice-Mail Network
      1. 3. Large-Scale Enterprise Requirements for IP Telephony
        1. Customer Profile
          1. Data Network Architecture
          2. Voice Network Architecture
          3. Data Applications
          4. Directory and Messaging Architecture
          5. PBX and Voice-Mail System Features
        2. Customer Requirements
          1. System Architecture
          2. IP Phones
          3. Integration and Replacement of Legacy PBX Systems
          4. Integration and Replacement of Legacy Voice-Mail Systems
          5. Voice Gateways
          6. Quality of Service
          7. Call Routing
          8. Emergency Services
          9. IPT Features and Applications
          10. Security
          11. Redundancy and High Availability
          12. Network Management
          13. Return on Investment
        3. Summary
      2. 4. Planning Phase
        1. Getting Started
        2. Network Infrastructure Analysis
          1. Campus Network Infrastructure
            1. Access Layer
              1. Auxiliary VLAN
              2. IEEE 802.1Q/p Support
              3. PortFast
              4. UplinkFast
              5. Deployment Models
            2. Distribution Layer
            3. Core Layer
            4. Cabling Infrastructure
            5. Common Guidelines
          2. QoS in Campus Network Infrastructure
            1. Data and Voice Traffic Characteristics
            2. Oversubscription in Campus Networks
            3. Network Trust Boundaries
            4. IP Phone QoS
          3. Inline Power for IP Phones
          4. Wireless IP Phone Infrastructure
          5. WAN Infrastructure
          6. QoS in WAN Infrastructure
            1. Minimizing Delay
              1. CODEC Delay
              2. Queuing Delay
              3. Serialization Delay
              4. Propagation Delay
              5. Jitter Buffer
            2. Using Traffic Shaping
            3. Provisioning WAN Bandwidth
            4. Using Voice Compression
          7. Network Services
            1. DHCP
            2. DNS
            3. NTP
            4. Directories and Messaging
          8. Power and Environmental Infrastructure
        3. Telecom Infrastructure Analysis
          1. PBX Infrastructure and Migration
          2. Telephony Numbering Plan
          3. Voice-Mail Infrastructure and Migration
          4. Emergency Services
          5. Telephony Features and Applications
          6. Business Continuity and Disaster Recovery
          7. Securing IPT Infrastructure
          8. Redundancy and High Availability
          9. IPT Network Management System
        4. Summary
      3. 5. Design Phase: Network Infrastructure Design
        1. Call-Processing Architecture
        2. IP Phone Selection
        3. Network Infrastructure Design Tasks
          1. Designing IP Addressing and VLAN Scheme
          2. Designing DHCP and TFTP Services
          3. Central Site LAN Infrastructure
          4. Central Site LAN QoS Design
            1. Access Layer Catalyst 6500 QoS Configuration Guidelines
            2. Distribution and Core Layer Catalyst 6500 QoS Configuration Guidelines
          5. Remote-Site IPT Infrastructure
          6. Remote-Site LAN QoS Design
            1. Configuring the Remote-Site LAN Switches for QoS
            2. Configuring Catalyst 3550 Switches
            3. Configuring the Ethernet Switch Module on the Cisco 3745 Router
          7. Remote-Site WAN QoS Design
            1. Perform DSCP-to-CoS Mappings
            2. Map CoS-to-DSCP Mapping on Remote-Site Routers
            3. Configure WAN Interface Queuing
              1. Voice and FAX Bandwidth Calculations
              2. Seattle Router WAN Queuing and Traffic Shaping
              3. Dallas Router WAN Queuing and Traffic Shaping
          8. Central Site WAN QoS Design
        4. Summary
      4. 6. Design of Call-Processing Infrastructure and Applications
        1. High-Level IPT Design
          1. Fax and Analog Terminals
          2. Voice Gateways
            1. Access to the PSTN
            2. Access to the PBX
          3. Media Resources
            1. Conferencing and Transcoding
            2. Music on Hold
          4. IPT Applications
            1. AutoAttendant
            2. Interactive Voice Response
            3. Call Center
            4. Voice Messaging
        2. Low-Level Design
          1. CallManager Cluster Design
          2. CallManager Scalability and Sizing
          3. Customer Response Solution Server Scalability and Sizing
            1. Sizing the Number of Agents
            2. Sizing the Number of IVR Ports
            3. Sizing the Gateway Trunks for the Call Center
          4. CallManager Group Configuration
          5. CallManager Date/Time Configuration
          6. CallManager Region Configuration
          7. CallManager Location Configuration
          8. Device Pool Configuration
          9. Media Resources Configuration
            1. Conferencing
              1. Conferencing Resources in San Jose
              2. Conferencing Resources in Seattle
              3. Conferencing Resources in Sydney
              4. Conferencing Resources in Melbourne
            2. Transcoding
              1. Transcoding Resources in San Jose
              2. Transcoding Resources in Sydney
            3. Music on Hold
              1. Configuring the MoH Server
              2. Configuring the Audio Source
                1. Assigning the Audio Source to the Devices
              3. Configuring the Remote-Site Router for MoH
            4. Configuring the MRGs and MRGLs
              1. Designing MRGs and MRGLs for Cluster 1
              2. Designing MRGs and MRGLs for Cluster 2
              3. Assigning MRGs and MRGLs to the Devices
          10. Gateway Selection and Sizing
          11. Dial Plan Architecture
            1. Numbering Plan
            2. Call-Routing Requirements
            3. CallManager Route Plan
            4. Partition Design
            5. Calling Search Space Design
            6. Route Groups
            7. Route Lists
            8. Route Patterns
              1. Wildcards
              2. Route Filters
              3. Digit Transformations
              4. Calling Party Transformations
              5. Connected Party Transformations
              6. Called Party Transformations
              7. Digit Discarding Instructions
            9. Gatekeeper
              1. Defining a Gatekeeper in CallManager
              2. Defining a Gatekeeper Trunk
              3. Gatekeeper Configuration
            10. Inbound Call Routing
            11. Automated Alternate Routing
              1. Enabling the AAR Service Parameter
              2. Defining the External Phone Number Mask
              3. Configuring AAR Groups
              4. Defining AAR Calling Search Spaces
          12. Survivable Remote Site Telephony
            1. SRST for Seattle and Melbourne Remote Sites
              1. SRST for Dallas and Brisbane Remote Sites
        3. Fax and Modem
        4. Securing the IPT Infrastructure
          1. Securing CallManager and Application Servers
          2. Using a Firewall and ACLs
          3. Securing the IPT Network from the Outside World
          4. Securing IPT Endpoints
          5. Securing Campus Network Devices
          6. Securing Voice Gateways
          7. Establishing Physical Security
          8. Installing Host-Based Intrusion Detection
        5. Summary
      5. 7. Voice-Mail System Design
        1. Defining the Voice-Mail System Architecture
          1. Microsoft Active Directory and Exchange
            1. Active Directory Architecture
            2. Exchange 2000 Messaging Architecture
          2. Unity Deployment Model
          3. Physical Placement of Unity Servers
          4. High Availability
          5. Securing Unity Servers
          6. Backup of Unity Servers
          7. Voice-Mail Access Options
            1. Telephone User Interface
              1. Accessing Voice Mail from IP Phone or PBX Extension
              2. Accessing Voice Mail from a User’s Mobile Phone
            2. Graphical User Interface
              1. Cisco Unity Inbox
              2. Microsoft Outlook E-Mail Application
              3. Outlook Web Access
        2. Designing a Cisco Unity System
          1. Message Store Options and Sizing
          2. Sizing Unity Ports and Sessions
          3. Unity Server Hardware
          4. Data Protection
          5. Exchange Software Licensing
          6. Unity Software Licensing
          7. Extending the Schema for Unity and Unity Bridge
        3. Installing Cisco Unity
          1. Unity Installation Account
          2. End-User Interaction
        4. Integrating Voice Mail
          1. Unity Integration with CallManager
            1. Configuring Partitions and CSS in CallManager
            2. Changing Service Parameters in CallManager
            3. Defining MWI On and Off Numbers in CallManager
            4. Defining Voice-Mail Ports in CallManager
            5. Defining the Voice-Mail Pilot Number
            6. Defining the Voice-Mail Profile
            7. Reserving Ports for MWIs and Outcall Notifications in Unity
            8. Making Changes to the Octel Access Numbers
            9. Configuring the AutoAttendant functionality in Unity
          2. Octel Integration with CallManager
            1. SMDI Integration
            2. Integration Using VG248
            3. Digital Integration Using DPA
          3. Designing the Cisco Unity Networking
            1. Digital Networking
            2. Bridge Networking
            3. AMIS Networking
            4. VPIM Networking
        5. Networking Octel and Unity
          1. Deployment Architecture with Unity Bridge
          2. Unity Bridge Software and Hardware
          3. Configuring Unity Bridge
            1. System Settings
            2. Digital Networking
            3. Unity Nodes
            4. Octel Nodes
          4. Unity Internet Voice Connector
        6. Customizing the Cisco Unity System
          1. Subscribers
            1. Class of Service
              1. Profile
              2. Subscribers
              3. System Access
              4. Transfer
              5. Messages
              6. Greetings
              7. Licensed Features
              8. Restriction Tables
            2. Subscriber Template
              1. Profile
              2. Account
              3. Passwords
              4. Conversation
              5. Call Transfer
              6. Greetings
                1. Standard Greeting
                2. Closed Greeting
                3. Busy Greeting
                4. Internal Greeting
                5. Alternate Greeting
              7. Caller Input
              8. Messages
              9. Distribution Lists
              10. Message Notification
            3. Account Policy
              1. Phone Password Restrictions
              2. Phone Lockout Policies
            4. Subscribers
              1. Profile
              2. Account (Defaults to the Template Settings)
              3. Phone Password (Defaults to the Template Settings)
              4. Private Lists
              5. Conversation (Defaults to the Template Settings)
              6. Call Transfer (Defaults to the Template Settings)
              7. Greetings (Defaults to the Template Settings)
              8. Caller Input (Defaults to the Template Settings)
              9. Messages
              10. Message Notification
              11. Alternate Extensions
            5. Public Distribution Lists
              1. Profile
              2. Members
          2. Call Management
            1. Call Handlers
              1. Profile
              2. Call Transfer
              3. Greetings
              4. Caller Input
              5. Messages
            2. Directory Handlers
              1. Profile
              2. Search Options
              3. Match List Options
            3. Interview Handlers
            4. Call Routing
              1. Direct Calls
              2. Forwarded Calls
            5. Restriction Tables
          3. Network
            1. Primary Location
              1. Profile
              2. Addressing Options
            2. Delivery Locations
              1. Profile
              2. Prefixes
              3. Subscriber Creation
            3. Bridge Options
              1. Subscriber Creation
              2. Synchronization
              3. Unknown Caller
          4. System
            1. Configuration
              1. Settings
              2. Software Version
              3. Recordings
              4. Contacts
              5. Phone Languages
              6. GUI Languages
            2. Schedules
            3. Holidays
            4. Licensing
            5. Authentication
            6. Integration
            7. Ports
        7. Multiple Directory Handlers
        8. Improving the User Experience During Migration
          1. Export Spoken Names from Octel to Unity
          2. Pre-Enrollment Procedures
        9. Summary
      6. 8. Implementation
        1. Complete Preimplementation Tasks
        2. Perform Implementation Readiness Analysis
          1. Site Readiness
          2. Voice Network Readiness
          3. Data Network Readiness
          4. IP Telephony Readiness
        3. Implement IPT Components
          1. CallManager and Application Server Implementation
            1. Operating System Installation
            2. Installing CallManager and Other Applications
            3. Installing Tools and Third-Party Applications
          2. Implementing Voice Gateways
            1. Implementing Catalyst T1 Voice Gateways Using the WS-X6608-T1 Module
              1. Step 1: Obtain the MAC Address of the Voice Port
              2. Step 2: Assign the IP Address for the Voice Port
              3. Step 3: Configure the Gateway on the CallManager
              4. Step 4: Verify the Gateway Registration Status on the Switch
              5. Step 5: Verify the Gateway Registration Status on the CallManager
            2. Implementing a Catalyst T1/E1 Voice Gateway by Using a CMM Module
              1. Step 1: Access the CMM
              2. Step 2: Configure the T1/E1 Port
              3. Step 3: Configure the Gateway on CallManager
              4. Step 4: Verify the Connectivity Status
              5. Step 5: Verify the Registration Status
            3. Troubleshooting Gateway Connectivity and Registration Issues
          3. Implementing IP Phones
            1. Implementation of IP Phones Using BAT
              1. Barcode Scanners
              2. Tool for Auto-Registered Phones Support
            2. Physical Phone Installation
          4. Implementing the Dial Plan
            1. Dialed Number Analyzer
              1. Analyzing the DNA Tool Output
          5. Implementing Cisco IP AutoAttendant
            1. Configuration Steps for AA
              1. Configurations in the CallManager for AA
              2. Configurations in the CRS/CRA Server for AA
          6. Implementing IP ICD
            1. Configuration Steps for IP ICD
              1. Configurations in the CallManager for IP ICD
              2. Configurations in the CRS Server for IP ICD
              3. Configurations in the CRS Server That Are Specific to ICD
            2. Call Center Agent and Supervisor Login Options
          7. Implementing IP IVR
          8. Implementing IP Phone Services
            1. Corporate Directory Access Through IP Phones
              1. Implementing Directory Access for IP Phones
              2. Installing and Configuring the LDAP Search COM Server
              3. Modifying the ldapsearch.asp Script
              4. Configuring IP Phone Services on the CallManager
              5. Subscribing Users to IP Phone Services
            2. Troubleshooting IP Phone Services
        4. Identify the Implementation Tools
          1. Checking the CallManager OS Version
          2. Checking the CallManager Version
          3. Checking the SQL Version
          4. Database Layer Tool to Check SQL Subscriptions
          5. Checking Inconsistencies in the Software Versions Within the Cluster
          6. Multi-Level Administration Tool
            1. Functional Groups
            2. User Groups
            3. Access Levels
            4. MLA Logs
        5. Deploy IPT Solution Pilot
        6. Implementation Acceptance Tests
        7. Post-Implementation Documentation
        8. Day 2 Support
          1. Escalation Procedures
        9. Training
          1. End-User Training
          2. Help Desk Staff Training
          3. Voice Network Administration Staff Training
          4. Voice Network Design/Architecture Staff Training
        10. Summary
      7. 9. Operations and Optimization
        1. Software Upgrades
          1. Operating System Upgrades
            1. Subscribe to Notification Alerts
            2. Stop Services
            3. Use Recommended Server Access Methods to Perform Upgrades
            4. Schedule the Upgrade
            5. Document Registered Device Counts
          2. Windows Operating System Upgrade
          3. CallManager Software Upgrade
            1. Upgrade Planning and Impacts
            2. Failover Procedure
            3. Recovery Methods
              1. Recovery Using Backup Data
              2. Recovery Using Mirrored Hard Drives
              3. Recovery by Uninstalling the Software
          4. Application Software Upgrades
            1. Upgrade Planning and Impacts
          5. IP Phone and Gateway Upgrades
            1. Upgrading the Firmware on a Few Cisco IP Phones or Gateways
            2. Upgrade Planning and Impacts
            3. Failover Procedures and Recovery Methods
          6. BIOS Upgrades
        2. Hardware Upgrades
          1. Memory Upgrades
          2. Server Hardware Upgrades
        3. CallManager Operation and Monitoring Tools
          1. Multilevel Administration
          2. Quality Reporting Tool
            1. QRT Viewer
          3. Real-Time Monitoring Tool
            1. Summary View
            2. Server View
            3. CallProcess View
            4. Service View
            5. Device View
            6. CTI View
            7. Perfmon View
            8. RTMT Alerts
            9. RTMT Reports
          4. CallManager Traces
            1. Trace Configuration
            2. The Troubleshooting Trace Settings Page and Cisco CallManager Trace Collection Tool
            3. Bulk Trace Analysis Tool
          5. CDR Analysis and Reporting
            1. User Reports
            2. System Reports
            3. Device Reports
          6. Q.931 Translator
          7. Alarm Configurations and Definitions
          8. Backup and Restore System
          9. Password-Changing Tools
            1. Admin Utility
              1. Cisco CallManager Password Changer
          10. Event Viewer
          11. Bulk Administration Tool
          12. DHCP Management
        4. Optimization Tips
          1. Time Synchronization
          2. CallManager Services
          3. Name Resolution
          4. IP Addressing
          5. Subnetting and VLANs
          6. Proactive Problem Identification and Resolution
          7. Duplex and Speed Settings
          8. Dial Plan Optimization
            1. Route Pattern Design
            2. Partition Rules
            3. Calling Search Space Rules
            4. Prefixing the Digits in Missed and Received Calls
          9. Securing the Servers
            1. Operating System Hardening
            2. Cisco Security Agent
          10. Service and Enterprise Parameter Fine-Tuning
          11. Deployments Involving Shared Lines
          12. Call Detail Records
          13. CallManager Traces
          14. Firmware Loads
          15. Cluster Guidelines
            1. Removing a Subscriber
            2. Auto-Registration
          16. Installing Third-Party Software Applications
            1. Changing Session Timeout for CallManager
          17. Cisco Unity Operations
        5. Day 2 Monitoring and Management Tasks
          1. CallManager Day-to-Day Monitoring Task List
          2. CallManager Pre-Upgrade Task List
          3. CallManager Post-Upgrade Task List
        6. IPT Network Management Tools
          1. CiscoWorks and IP Telephony Environment Monitor
            1. Alerts and Activities
            2. Active Partition Selector
            3. Device Management
            4. Notification Services
            5. Fault History
            6. Configuration
              1. Confidence Testing
            7. IP Phone Information Facility
            8. SRST Monitoring Management
            9. IP Phone Reachability Testing
            10. IPT Security Displays
            11. IP Phone Help Desk Utility
            12. Gateway Statistics Utility
        7. Summary
    9. III. Appendixes
      1. A. Cisco IP Phone Models and Selection Criteria
      2. B. IPT Planning Phase: Network Infrastructure Analysis Questionnaire
        1. Customer Business and Technical Expectations
          1. Company Overview
          2. Company Vision
          3. 3- to 5-Year Plan
          4. Solution Expectations
          5. Project Expectations
          6. Deployment Timeframe
          7. Financial Expectations
        2. Network Design
          1. Hierarchy
            1. Notes/Comments
          2. Modularity
            1. Notes/Comments
          3. Layer 2 Design—Core Layer
            1. Core Layer Performance
              1. Notes/Comments
            2. Core Layer High Availability
              1. Notes/Comments
            3. Core Layer Configuration
              1. Notes/Comments
          4. Layer 2 Design—Distribution Layer
            1. Distribution Layer Performance
              1. Notes/Comments
            2. Distribution Layer High Availability
              1. Notes/Comments
            3. Distribution Layer VLAN Architecture
              1. Notes/Comments
            4. Distribution Layer Configuration
              1. Notes/Comments
          5. Layer 2 Design—Access Layer
            1. Access Layer Characteristics
              1. Notes/Comments
          6. Access Layer High Availability
            1. Notes/Comments
          7. Wide Area Network
            1. WAN Design and High Availability
              1. Notes/Comments
            2. WAN—Network Baseline
              1. Notes/Comments
            3. WAN—Capacity Planning
              1. Notes/Comments
          8. Routed Network—Layer 3 Design
            1. IP Addressing
              1. Notes/Comments
            2. Routing Protocol
              1. Notes/Comments
            3. IP Hot Standby Routing Protocol
              1. Notes/Comments
            4. Quality of Service
              1. Notes/Comments
        3. Network Services
          1. DNS
            1. Notes/Comments
          2. DHCP
            1. Notes/Comments
          3. Network Time Protocol
            1. Notes/Comments
          4. Directories
            1. Notes/Comments
          5. Messaging System
            1. Notes/Comments
        4. Cabling and Network Links
          1. Notes/Comments
        5. Hardware Scalability
          1. Notes/Comments
        6. Software
          1. Notes/Comments
        7. Power Protection and Environmental Condition
          1. Power Protection
            1. Notes/Comments
          2. Environmental Condition
            1. Notes/Comments
          3. Power Calculations
            1. Notes/Comments
        8. Security
          1. Notes/Comments
      3. C. IPT Planning Phase: Telecom Infrastructure Analysis Questionnaire
        1. PBX Infrastructure
          1. Notes/Comments
        2. Analog Device Information (Fax/Modem)
          1. Notes/Comments
        3. Trunk Sizing
          1. Notes/Comments
        4. Telephony Numbering Plan
          1. Notes/Comments
        5. Voice-Mail Infrastructure
          1. Notes/Comments
        6. Telephony Features and Applications
          1. Notes/Comments
        7. Applications Security
          1. Notes/Comments
        8. Operations and Maintenance
          1. Network Management System
            1. Notes/Comments
          2. Remote Network Monitoring/Management
            1. Notes/Comments
          3. Maintenance/Support Contract
            1. Notes/Comments
      4. D. IPT Design Phase: IP Phone Selection Questionnaire
        1. User Requirements for Phone Features
      5. E. IPT Design Phase: IPT Requirement Analysis Questionnaire
        1. IP Telephony Deployment Model
          1. Notes/Comments
        2. Codec Selection
          1. Notes/Comments
        3. Legacy Voice-Mail Integration Requirements
          1. Notes/Comments
        4. Legacy PBX Integration Requirements
          1. Notes/Comments
        5. Sizing the CallManager Cluster
          1. Notes/Comments
        6. Branch Office IPT Requirements
          1. Notes/Comments
        7. Class of Restriction Requirements
          1. Notes/Comments
        8. Call-Routing and Dial Plan Requirements
          1. Notes/Comments
        9. Sizing the PSTN/Gateway Trunks
          1. Notes/Comments
        10. Power Requirements (Per Site/Per Switch Specific)
        11. Call Admission Control Considerations
          1. Notes/Comments
        12. Corporate Directory Requirements
          1. Directory Access Requirements
            1. Notes/Comments
          2. Directory Integration
          3. Notes/Comments
        13. Conferencing, Transcoding, and MTP Requirements for Central Sites
          1. Notes/Comments
        14. Music on Hold Requirements
          1. Notes/Comments
      6. F. Ordering T1/E1 PRI from the Carrier Questionnaire
      7. G. Voice-Mail Design Questionnaire
        1. Voice-Mail Requirements
          1. Notes/Comments
        2. Messaging and Directory Architecture
          1. Comments/Notes
        3. Infrastructure Requirements for Unity Deployment
          1. Comments/Notes
        4. Sizing the Unity Server
          1. Comments/Notes
        5. Unity Integration with PBX/CallManager
          1. Comments/Notes
        6. Unity Networking with Other Voice-Mail Systems
          1. Comments/Notes
      8. H. IPT Implementation Checklist
        1. Preimplementation Tasks
          1. Project Plan
          2. Site Information
          3. Implementation Team
        2. Implementation Readiness Analysis
          1. Site Readiness Analysis
          2. Voice Network Readiness
          3. Data Network Readiness
          4. IPT Readiness Analysis
        3. Configuration Checklist for Installation of CallManager and Other Application Servers
          1. Server OS Installation Configuration Parameters
          2. CallManager Server Installation Parameters
        4. Acceptance Tests
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