1. E-business & E-commerce
Multimedia over IP
E-business & E-commerce
Results of the IP Networking &
Mediacom 2004 Workshop
ITU-T Study Group 16

2. Vice Chairman ITU-T Study Group 16
John Magill
Vice Chairman ITU-T Study Group 16
Consultant to Agere Systems, UK
(formerly the Microelectronics Group of
Lucent Technologies)
ITU-T Study Group 16

3. IP Networking and Mediacom 2004 Workshop sessions – IP/Joint
Transition towards next generation networks
Network/service management
IP billing/accounting requirements
IP Virtual Private Networks
Multimedia service evolution
Achieving Multimedia QoS over hybrid IP/PSTN infrastructures
ITU-T Study Group 16

4. IP Networking and Mediacom 2004 Workshop sessions – Mediacom
E-commerce/e-business
Convergence/interactive broadcast
Multimedia mobility
Multimedia access platforms
Presentations and results available at:
ITU-T Study Group 16

5. Multimedia Access Platforms
Review of:
Existing standards e.g. H.323 family
H.248 & IETF co-operation
Applications
Call control issues
ITU-T Study Group 16

6. Interworking Between Multimedia Terminals
Interworking with Multimedia terminal on the Internet
Interworking with Multimedia terminal on the PS mobile network
3G-324M – H.323/SIP Interworking
Packet Switched
Mobile Network
Circuit Switched Mobile NW
Internet
MGC MG
SS7
H.248
MT (PS)
(SIP/H.323)
H.323/SIP
3G-324M
ITU-T Study Group 16

7. Multimedia Access Platforms
Extend co-operation and collaboration on H.248
development of version 2
co-ordination of new packages
Work with IETF, ETSI TIPHON, ITU-T SG9, SG11, SSG-IMT2000, etc.
ITU-T Study Group 16

8. Multimedia Access Platforms
Promote interworking
Interoperability test programs
Protocol interworking definitions
H.248 – H.323
H.248/H.323 – SIP
H.323 – H.324
ITU-T Study Group 16

9. Multimedia Quality of Service
Review of:
Voice QoS aspects
Current work in some standards bodies
Traffic and congestion control
Network performance trends
QoS signalling
ITU-T Study Group 16

10. RTT from ESnet to Groups of Sites
RTT ~ distance/(0.6*c) + hops * router delay
Router delay = queuing + clocking in & out + processing
ITU G ms RTT limit for voice
20%/year
ITU-T Study Group 16

11. RTT from California to world
Europe
E. Coast
Brazil
W. Coast US
E. Coast US
300ms
RTT (ms)
Europe & S. America
3*0.6c
Longitude (degrees)
300ms
Frequency
Source = Palo Alto CA, W. Coast
ITU-T Study Group 16
RTT (ms.)
Data from CAIDA Skitter project

12. Loss seen from US to groups of Sites
50% improvement / year
ITU-T Study Group 16
ETSI DTR/TIPHON V1.2.5 threshold for good speech

13. Multimedia Quality of Service
Study areas:
Metrics for customer perceptions (voice, video, etc.)
Network metrics e.g. delay, jitter, packet loss
User application requirements
PSTN to IP migration
Needs of developing countries
ITU-T Study Group 16

14. Multimedia Quality of Service
QoS architectures
QoS control mechanisms
Signalling QoS requirements
QoS classes – need for some harmonisation
Roles of ‘service’ and ‘transport’ providers
ITU-T Study Group 16

15. An Application Controlled Approach to QoS
Service Domain 1
Application Plane
Transport Plane
Transport Domain 1
Transport Domain 3
Transport Domain 2
Packet Flow
QoS Signalling
ITU-T Study Group 16
Call Signalling

16. Max Packet Loss, Max Mean Delay, Max Delay Variation
QoS Parameters
ITU-T SG12/16
SERVICE
QoS Service Class
APPLICATION
Codec Performance, VAD, Frames per Packet, Jitter Buffer Size,Codec Delay, FEC (Redundancy)
ITU-T SG16/11
Max Packet Loss, Max Mean Delay, Max Delay Variation
TRANSPORT
ITU-T SG13/IETF
ITU-T Study Group 16

17. E-commerce/e-business
Review of:
Some user requirements
Potential applications
Tools
Potential ITU-T work items
ITU-T Study Group 16

18. E-commerce/e-business
ITU-T well placed to provide solutions
Experience in
Transmission & Switching
Interoperabilty
Terminals
Billing & accouinting
Settlements across operators
ITU-T Study Group 16

19. E-commerce/e-business
Study items
Payment mechanisms
Security aspects & privacy
Identification & authentication
Tracking and auditing
Network management and control
Tools and protocols
ITU-T Study Group 16

20. “On the internet, nobody knows you’re a dog”
© New Yorker Magazine
ITU-T Study Group 16

21. Other issues
Need to define multimedia service capabilities rather than services?
Service architectures
Mobility aspects
Voice & video coding
Service convergence
ITU-T Study Group 16