ARE YOU READY FOR VOICE OVER IP?

3/22/02


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Table of Contents

ARE YOU READY FOR VOICE OVER IP?

Copyright & Notices

Presentation handouts

Are You Ready for VoIP?

Agenda

Broadband Packet Service Types

Generic Packet Format: Payload

Generic Packet Format: Header

Generic Packet Format: Header

“Connectionless” Telephony

LAN/WAN Issues

Non-Issues (for this session)

Agenda

Address Spoofing: Who sets the address?

VoIP Security Concerns

Agenda

SIP Basics

SIP Entities

SIP Call

H.323 Basics

H.323 “Umbrella”

H.323 Entities

H.323 & SIP…Side by Side

Agenda

Multiple Tandems

Multiple Tandems

Multiple Tandem Degradation

Solution: Call Processing

Solution: Call Processing

Delay

Some Delay Sources

Freeze-Out: Frames

Freeze-Out: Frames

Freeze-Out: Cells

Freeze-Out: Cells

Freeze-out: Myth & Reality

Freeze-out: Bottom Line

Fill Time

Last Cell and Packet Voice

Queuing in Access

Queuing in Access

Queuing in the Network: Infrastructure Issues

Frame Relay / ATM Interworking with IP

Output Queuing

For more information…

ARE YOU READY FOR VOICE OVER IP?

Author: Larry Hettick

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