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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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Peter cochrane l.jpg

Voice Over IP

Peter Cochrane


Slide2 l.jpg

  • 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 l.jpg

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 l.jpg

1

2

3

4

n

Network Laws - Broadcast

Connectivity =< n/2

One way only

Not all are always on


Network laws telephone l.jpg

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 l.jpg

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 l.jpg
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 l.jpg

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


Slide9 l.jpg

From fixed line to…. …..Mobile

From talk to…..Text


Slide10 l.jpg

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 l.jpg

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 l.jpg
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 l.jpg
Voice Over Packet Switched Networks(VOIP)

-Telephone

-Mobile

-Headset

Router/Switch

R

R

Server

S

R

R

S

R

R

R

R


Telco voip l.jpg
Telco VOIP

-Telephone

-Mobile

-Headset

Server

Router

S

R

X

R

S

Nailed Down

Routers & Switches


Circuit to packet cost reduced to 10 l.jpg

Circuit to Packet …. Cost Reduced to 10%


Slide16 l.jpg

Death to the PBX?

Mobile/

PDA

WiFi/BlueTooth

VOIPGateway

PBX

X

PSTN

Circuit

Switched

Network

Internet

Intranet


Slide17 l.jpg

A world of opportunity & risk….

Thank you,

cochrane.org.uk

conceptlabs.net


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