IMT Lecture: VOIP&IPTV MM-Biztel 02Nov09

1. VOIP & IPTV Delivery Systems:
VOIP Description & Operation and
IPTV Broadband Access & Operation
Lecture by:
by:
Djadja.Sardjana@gmail.com
http://www.slideshare.net/djadja
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2. VOIP & IPTV Delivery Systems:
VOIP Description & Operation
VOIP
2m00
Description
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3. What is Voice over IP (VoIP)?
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Internet/
Private IP Network
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IP Packet
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4. What is IP Telephony ?
ITU Definitions
VoIP : Use of Private Networks
Internet Telephony : Use of Public Network
IP Telephony : VoIP + Internet Telephony
Alternatives
This deployment is VoIP
(end points are PSTN)
End points are IP
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5. VoIP Deployments
Phone to Phone
1998 is mainly provided by
Service Provider or
Private Network
(E.g. Singtel’s 019)
1999 PC(Web) to Phone
is mainly provided
by Service Provider
(E.g. Web2Phone)
IP Phone to IP Phone
2002 is mainly provided by
Service Provider or
self Managed
(E.g. Free World Dial)
post Wireless IP Phone
2003 to Wireless IP Phone
will be provided by whom?
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6. IP-to-IP Calls
IP-to-
Internet
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7. IP-to-PSTN Calls
IP-to-
Internet
PSTN
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8. The Internet Multimedia Protocol Stack
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9. SIP and H.323 comparisons
SIP H.323
Minimal delay - simplified Possibilities of delay (up to 7 or
signalling scheme makes it 8 seconds!)
A simple toolkit relative of
"New World" - aupon which
faster H.323 specifies everything
"Old World" - complex,
smart clients and - simple, open
Internet protocols applications including the codec for the
deterministic and vertical
Slimbe built. It re-uses Net
can and Pragmatic
and horizontal media and how cumbersome to
The suite is too you carry the
elements (URLs, MIME and deploy easily
packets in RTP
IETF ITU
DNS)
Seamless interaction with other
Leaves issues of reliability to Services are nailed-down and-
Assumes fallibility of network
media - services are only limited
underlying network constricted
an unnecessary overhead
Carrier-class solution addressing
by the developers imagination Borne of the LAN - focusing on
the wide area enterprise conferencing priorities
Many vendors developing
SIP messages are formatted as The majority of existing IP
H.323 messages are ASN.1
products
text. telephony products rely on the
binary encoded, adding
H.323 suite www.sipcenter.com
complexity
Taken from
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10. VOIP & IPTV Delivery Systems:
VOIP Description & Operation
IPTV
3m13
Operation
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11. Implications
No more time-based
telephony charges
No concept of local call, long-
distance call or IDD call
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12. Change in Business Paradigm
Traditional Telecom Model New Telecom Model
Value-Added
Voice
Service
Data Service Value-Added Service
Voice Service Data Service
Infrastructure Infrastructure
“The most powerful paradigm shift is the fact that applications are not woven into the
platforms. Now to be a phone company, you don't have to weave tightly the voice service
into the infrastructure. They (Vonage) turn voice into a application and shoot it across one
of these platforms. And, suddenly, you're in your business.”
– Michael Powell, Chairman of FCC
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13. Technical Issues
Technical Architecture
To achieve interoperability between different IP Telephony services,
What should be the technical common platform?
What are the technical specifications to adopt?
Quality of Service
What is the acceptable QoS for IP Telephony?
How to ensure QoS?
Security and Privacy
How secure is IP Telephony?
What about wiretapping requirements?
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14. Business Issues
Interconnection
Who can interconnect to PSTN?
What is the pricing model?
Market Studies
What is the economic impact?
How would it change the telco landscape?
(cost to setup IP Telephony service ~= cost to setup Email service)
Numberings
What’s is the numbering plans for IP Telephony?
How are numbers assigned for IP Telephony services?
What if there is no service provider?
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15. Regulatory Issues
Classification
How do we classify all the different IP Telephony services?
Are they subjected to similar “regulation”?
Licensing
Who needs to apply for license?
What if there is no service provider?
Universal Access
Is it applicable to IP Telephony?
How about emergency numbers?
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16. VOIP & IPTV Delivery Systems:
IPTV Broadband Access
and Operation
Mobile
Monkey
1m00
Definition
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17. What is IPTV
Still evolving
Digital TV delivered using technologies used for
computer network. Internet Protocols (http, rtsp,
rtsp,
igmp)
igmp)
A TV like ‘quality of service’ (always on, reliable)
Can be ‘live’ or pre-recorded (on-demand)
pre- (on-
Usually over a managed/closed network
Eg. “Telkom TV”, Virgin TV, Tiscali TV, BT Vision
Eg.
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18. Managed Networks on IPTV
Control over
bandwidth allocation
contention ratio
content
} Controlled
‘quality of service’
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19. What is Internet TV
Digital TV delivered using technologies
used for computer network. Internet
Protocols (http, rtsp, igcmp)
rtsp, igcmp)
No guaranteed ‘quality of service’
Usually delivered via open-internet / un-
open- un-
managed network
Eg. YouTube, BBC iPlayer on browser/PC
Eg.
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20. Open Internet (Unmanaged networks)
Variable bandwidth Little control
Higher contention ratio (20:1)
Less control over content
} over
‘quality of
service’
The Content Provider need to working to
ensure quality of service with ISPs. This will
possibly change the definition of IPTV through
the consensus that the quality of service is
good over the open internet
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21. IPTV vs Internet TV
Open Internet Managed Network
Virgin
YouTube
VOD Telkom TV
PC
iPlayer Tiscali TV
BT Vision
ISPs based
Orange TV
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22. How to capture/create IPTV
Copper wire /
fibre
Head end to Compression/
Capture TV Encoding/
Encryption
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23. IPTV over the network cloud
Mobile
Device
Wifi / wimax Computer
ADSL
Network
ADSL
Hybrid fibre coax
Set-top Box Protocols
Freesat - http
Cable Set-top Box
Tiscali - rtsp
BT Vision
Virgin - igmp
[Orange TV]
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24. Why IPTV and not Broadcast
Two-
Two-way data flow (video on demand)
Greater personalisation / tailored
advertising
Combined features
Voice over IP
Messaging/Recommendations
Chat around content
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25. IPTV-
IPTV- Key Protocols
HTTP Request
(hyper-text-transfer- Firefox, Internet Explorer
protocol) Response
play
RTSP
pause
(real time streaming
Real Player, Windows Media Player
protocol) (streamed video)
record
IGMP - connecting to multicast stream (TV channel)
(internet group - changing from one channel to another
management
protocol)
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26. IPTV Codecs
MPEG4
MPEG2
WMV9
H.264:
• Up to 50% in bit rate savings
• High quality video
• Error resilience
• Network friendliness
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27. Middlewares on devices
IPTV
PC MOBILE STB
Liberate
ICTV
BROWSER APP MHEG 1.06
MHEG Turbo
Joost Bablegum
Mozilla IE
MEDIA ROOM
Windows Media Player
Flash
Real Player
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28. VOIP & IPTV Delivery Systems:
IPTV Broadband Access
and Operation
IPTV
Opportunities
2m12
Operation
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29. IPTV/Internet TV Platforms/Operators
OPERATOR MIDDLEWARE CODEC DELIVERY MANAGED
NETWORK NETWORK
Tiscali (client-side h.264 ADSL YES
Java)
BT Vision Mediaroom h.264 ADSL YES
Virgin Liberate Mpeg 2 Hybrid fibre YES
(Seac-change) co-ax
Freesat MHEG 1.06 Not Any – NO
turbo implemented dependent on
isp
Freeview MHEG Dependant on Any – NO
(other than BT ISP dependent on
vision) isp
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30. Server Side Video /
Client Side Application
Server
(contains video)
Disadvantages
-Slower to load video
Instructions for Streamed Video -Longer round trip to server
video
(play, ff, rw, battling against bandwidth
pause)
are sent to Advantages
server
-Greater capacity for video
on servers than set-top/pc
Set Top Box
Contains:
- application code previously downloaded
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31. Server Side Video / Server Side App
Server
(contains video and app)
Disadvantages
-Slower to load video/app
-Longer round trip to server
Instructions for Streamed Video
video
battling against bandwidth
AND
(play, ff, rw, Streamed Application /contention ratio
pause)
AND to navigate
the app Advantages
are sent to server
-Greater capacity for video
-Larger app size for
Set Top Box more functionality
contains:
- no storage in the box
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32. Client Side App / Client Side Video
Disadvantages
Set Top Box/PVR -Inability to leverage server
for capacity.
Advantages
contains: -Quick seamless transitions
1. application code previously between video and scenes.
downloaded -Store app locally and take
2. video previously downloaded box from a to b (i.e. to
a friends house)
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33. Peer-to-
Peer-to-Peer Video /
Client Side Application
Disadvantages
Set Top Box/PVR
-Longer round trip to
through network
contains:
- application code previously downloaded Advantages
- video streamed from other pcs/boxes -Leverage other PC/set-
tops with the same video
for speedy download
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34. Operation Factors
Digital Rights Management (DRM)
Security (logging in / privacy)
Messaging
Mobile Devices
Authoring
Video Delivery
Games consoles
User experience & design
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35. VOIP & IPTV Delivery Systems
Future IPTV
communication Case
5m14
Study
Conclusion & Final Words
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36. How should technology Which distinctive
and innovation be technological
organized and competences and
managed? capabilities are
1 necessary?
6
Which
When, how and
Questions technologies
should be
where should new
technology be Technology 2 used to
implement
introduced to the product and
market?
Strategy Should service?
5 Answer 3
Should technologies
be sourced internally 4 What should be the
or externally?
level and timing of
investment in
Source: Burgelman, Strategic Management of Technology and Innovation technology
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