Table of Contents
Voice Over IP, Frame Relay, & ATM: Getting Ready for Prime Time
Copyright & Notices
Getting Ready For Prime Time
Getting Ready For Prime Time
Compressed Voice
Today’s Compressed Voice
When is Compressed Voice Important?
Why packet voice?
Why packet voice?
Worldwide Companies Using Frame Relay Services
Why packet voice?
Broadband Packet Service Types
Generic Packet Format: Payload
Generic Packet Format: Payload
Generic Packet Format: Payload
Generic Packet Format: Header
Generic Packet Format: Header
Generic Packet Format: Header
Connection-oriented vs. Connectionless Architectures
Connection-oriented vs. Connectionless Architectures
Connection-oriented vs. Connectionless Architectures
Where Packet Types Fit...
Getting Ready For Prime Time
Reference Architectures
Carrier Infrastructure (ITSP)
Reference Architectures
Integrated Voice/Data Infrastructure
Also for Remote Off-Net
Reference Architectures
Workstation to Workstation
Reference Architectures
Hybrid Applications
Packet Voice Implementations
Packet Voice Implementations
Which Implementations Fit Which Architectures?
Current Equipment Challenges
Getting Ready For Prime Time
Packet Voice Sound Quality
“Mean Opinion Score” Values
How do you think it sounds?
Voice Samples
Multiple Tandems
Multiple Tandems
Multiple Tandem Degradation
Solution: Call Processing
Solution: Call Processing
Alternate Solution: Switching in IAD / Switch
Alternate Solution: Switching in IAD / Switch
Packet / Compressed Voice Variables
Does it Sound Good?
Delay
Some Delay Sources
Freeze-Out: Frames
Freeze-Out: Cells
Freeze-out: Myth & Reality
Freeze-out: Bottom Line
Fill Time
Last Cell and Packet Voice
Last Cell and Packet Voice
Queuing in Access
Queuing in Access
Queuing in the Network: Infrastructure Issues
Output Queuing
Signaling (call control)
Carrier Signaling
Integrated IP Network
Fax & Modem Traffic
Remodulation (Fax Relay)
No Standard / Specification
With standards
Does it work?
Getting Ready For Prime Time
Enterprise Business Case: ITSP Model
Enterprise Business Case: Workstation-Workstation Model
Enterprise Business Case: Integrated Voice/Data
Assumptions for Pricing Models
Comparison with Dial Voice: Fixed Cost Comparison
Alternative Calculation: Break-even Point
Yet Another Option: Usage Rates
Usage CIR and Voice
Summary: Enterprise Business Case
Getting Ready For Prime Time
Carrier Business Case: Workstation-Workstation Model
Carrier Business Case: ITSP Model
Carrier Business Case: ITSP Model
Carrier Business Case: ITSP Model
Voice vs. Data Bandwidth
Carrier Business Case: ITSP Model
Carrier Business Case: Integrated Voice/Data with CLE
Carrier Business Case: Integrated Voice/Data with CLE
Carrier Business Case: Integrated Voice/Data with CLE
Carrier Business Case: Integrated Voice/Data; No CLE
Carrier Business Case: Integrated Voice/Data; No CLE
Carrier Business Case: Integrated Voice/Data; No CLE
“TDM” Access Technology
CBR ATM Access Technology
Business Case For Carriers: Account Control
Business Case For Carriers: Account Control
Getting Ready For Prime Time
Summary
PPT Slide