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xxv
H.225
611
Cisco IOS Gatekeeper
612
Cisco CallManager Version 3.0
613
Quality of Service for Packetized Voice
614
Delay
616
Loss
619
Echo
619
Delay
619
Router Design Concerns
619
IP Precedence
619
Class-Based Weighted Fair Queuing
620
Traffic Engineering
621
Traffic Measurement Units
622
Traffic Engineering Process
623
Forecasting Growth
623
Gathering Voice Traffic Data
624
Categorizing Traffic by Group
625
Calculating the Number of Trunks
625
Choosing the Proper Combination of Trunks
627
Converting PSTN Traffic to IP Traffic
627
Foundation Summary
629
Q&A
631
Scenarios
636
Scenario 1
636
Answer to Scenario 1
637
Appendix A
Answers to Review Questions
641
87200333.book Page xxv Wednesday, August 22, 2001 2:18 PM