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Voice Over IP. Peter Cochrane. Changes will be mega-destructive… BlueTooth Ultra Wideband WiFi + WiMax MP3 Voice Over Internet Protocol (VOIP) Radio Frequency Identification (RFID) Blogs & Video Blogs …are only the start.

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Presentation Transcript
peter cochrane

Voice Over IP

Peter Cochrane

slide2

Changes will be mega-destructive…

  • BlueTooth
  • Ultra Wideband
  • WiFi + WiMax
  • MP3
  • Voice Over Internet Protocol (VOIP)
  • Radio Frequency Identification (RFID)
  • Blogs & Video Blogs
  • …are only the start
slide3

We can only guess/imagine whatour networks will be expected to support in the next decade/s…and it is the customers who decide and not the companies

Peter Cochrane

1995

network laws broadcast

1

2

3

4

n

Network Laws - Broadcast

Connectivity =< n/2

One way only

Not all are always on

network laws telephone

1

2

1

2

5

3

4

3

4

n

Network Laws - Telephone

Broadcast

< n(n-1)/2 ~n2

Bothways - Customer Control

Availability >99%

< n/2

network laws internet

1

1

1

2

2

2

3

5

4

3

5

3

4

4

N

n

1 2 …n

Network Laws-Internet

Broadcast Telephone

Nn

Always - customer control

Availability >95%

< n/2

< n(n-1)/2 ~n2

how many friends do you have how many people do you know
How many friends do you have… ...how many people do you know?

Separation People You Know

0 => 30 => 300

1 => 900 => 90,000

2 => 27,000 => 27,000,000

3 => 810,000 => 8,100,000,000

4 => 24,300,000

5 => 729,000,000

6 => 21,870,000,000

slide8

The Telephone Network

Dedicated point to point

connections based on old

analogue technologies

spanning >100 years

Reliable, dependable, well

developed, well understood,

but limited and in decline

slide10

PSTN v Packet Switched (IP - VOIP) Space

Millions

Cellular Mobile

Customers

1,400

1,200

1,000

800

600

400

200

0

Fixed Line

Phones

1Bn

WEB

Mobile

Phones

A dying circuit switched

network

A growing IP

network

PC\'s on

Line

VOIP

Mobile

Devices

1996

1997

1998

1999

2000

2001

2002

2004

2005

2003 2005

slide11

Analogue

Analogue Digital

Telephone Basics

Local Region National International

Switches Gateway

X

X

X

X

X

X

X

X

X

X

ip packet switched networks
IP - Packet Switched Networks

Router/Switch

R

R

Server

S

R

R

S

Packetsof

bitsinserial

transmission

R

R

Packetsarrivein

wrong order&have

tobereassembled

correctly

R

R

voice over packet switched networks voip
Voice Over Packet Switched Networks(VOIP)

-Telephone

-Mobile

-Headset

Router/Switch

R

R

Server

S

R

R

S

R

R

R

R

telco voip
Telco VOIP

-Telephone

-Mobile

-Headset

Server

Router

S

R

X

R

S

Nailed Down

Routers & Switches

slide16

Death to the PBX?

Mobile/

PDA

WiFi/BlueTooth

VOIPGateway

PBX

X

PSTN

Circuit

Switched

Network

Internet

Intranet

slide17

A world of opportunity & risk….

Thank you,

cochrane.org.uk

conceptlabs.net

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