1. IP Networking and MediaCom 2004
Study Group 12 and ITU QoS Coordination Dr. Charles (Chuck) Dvorak SG12 Vice-Chairman
Introduce self
report is in doc 21 and 22
IP Networking and MediaCom 2004

2. IP Networking and MediaCom 2004
Where are the world’s QOS experts?
A primary core competence of the ITU-T is
the substantial expertise that it has across
several Study Groups in the areas of QOS
and Performance. The experts who work in
the ITU-T do related work in regional SDOs
(for example, ETSI, T1, TTC), but nowhere
else does this same level of expertise reside.
Emphasize uniqueness of 12:
methodologies
terminals
user applications
mention relation to 13, 16
IP Networking and MediaCom 2004

3. IP Networking and MediaCom 2004
SG12 Area of Responsibility
End-to-end transmission performance of networks, terminals and their interactions, in relation to the perceived quality and
acceptance by users of text, speech, and
image applications; including the related transmission implications of all networks
(PDH, SDH, ATM and IP) and terminals.
Emphasize uniqueness of 12:
methodologies
terminals
user applications
mention relation to 13, 16
IP Networking and MediaCom 2004

4. IP Networking and MediaCom 2004
IP and Multimedia in SG12
Q.2- Transm. Requirements for IP gateways and terminals
Q.8- E-Model (planning tool for speech quality incl. VoIP)
Q.11- Transmission of multiple interconnected networks
Q.12- Voiceband services transmission via IP networks
Q.13- Multimedia QOS and performance requirements
Q.14- Effects of interworking multiple IP domains on VoIP
Q.15- QOS coordination in the ITU (Lead Study Group work)
Q.16- In-service non-intrusive assessment of VoIP
Emphasize uniqueness of 12:
methodologies
terminals
user applications
mention relation to 13, 16
IP Networking and MediaCom 2004

5. IP Networking and MediaCom 2004
Examples of new SG12 work
G.17x: Transmission of Voiceband Services Over IP Flows
G.IPP: Transmission Performance Parameters Of IP Networks Affecting Speech Quality And Other Voiceband Services
G.QoSRQT: Multimedia QoS Requirements
G.VoIP-Islands: Trans. Plan. for interconnected IP-based networks supporting VoIP services
G.VBS-Islands: Trans. Plan. for interconnected IP-based networks supporting PSTN-type speech and voiceband data services
P.VOIP: Speech requirements and measurements for IP terminals
P.GTWY: Speech requirements and measurements for Gateways
Emphasize uniqueness of 12:
methodologies
terminals
user applications
mention relation to 13, 16
IP Networking and MediaCom 2004

6. IP Networking and MediaCom 2004
Scope of Question 2/12
Emphasize uniqueness of 12:
methodologies
terminals
user applications
mention relation to 13, 16
IP Networking and MediaCom 2004

7. IP Networking and MediaCom 2004
Scope of Question 14/12
Emphasize uniqueness of 12:
methodologies
terminals
user applications
mention relation to 13, 16
IP Networking and MediaCom 2004

8. IP Networking and MediaCom 2004
SG12 as the QOS Lead SG
Internal to the ITU-T, provide a roadmap for
QOS activities that can be used to identify, communicate and resolve QoS-related issues.
External to the ITU-T, improve the visibility and utilisation of ITU-T expertise in QoS, and better leverage this expertise in specifications being developed elsewhere in the industry.
Emphasize uniqueness of 12:
methodologies
terminals
user applications
mention relation to 13, 16
IP Networking and MediaCom 2004

9. IP Networking and MediaCom 2004
One example of an industry-wide issue
End-end performance and allocation of
objectives can be done for an end-to-end
architecture like that of the PSTN. But the
Internet is not an end-to-end network, but
a set of protocols that work across domains.
How to do effective performance planning?
Emphasize uniqueness of 12:
methodologies
terminals
user applications
mention relation to 13, 16
IP Networking and MediaCom 2004