Question 19/12 - Call processing performance
(Continuation of Question 9/13)
Motivation
Call processing performance parameters, objectives, and allocation methods are needed to support efficient design of networks and to provide guidance to developers of related systems and applications for digital networks, particularly IP-based networks. Implementation of IP applications will require performance specifications for advanced call processing features. When several network operators work together in providing end-to-end communications, each needs to understand how to achieve the end-to-end performance objectives. Such objectives must be both adequate for the service being offered and feasible based on the available networking technologies.
Recommendations in force: I.352, I.354, I.358 and I.359
Question
Study items to be considered include, but are not limited to:
� IP-based networks
� What reference models, architectures, and protocols (including media gateway and media gateway control protocols) should be used as a basis for specifying the call processing performance of IP-based networks?
� How should call processing performance parameters be defined for communications established using the session initiation protocol (SIP)?
� What call processing performance objectives and QoS classes should be defined to quantify the speed, accuracy and dependability of IP-based networks, including networks providing IP telephony?
� How should call processing performance be specified for connection-oriented MPLS?
� How should specified call processing performance values for IP-based networks be related to the type, amount, and quality of network resources being requested?
� How can the defined call processing parameters be measured?
� B-ISDN
� How should the latest broadband capability sets be incorporated with I.358?
� What values should be recommended for accuracy and dependability parameters of B-ISDN?
� How should the specified values be related to the type, amount, and quality of network resources being requested?
� How can the defined B-ISDN call processing parameters be measured?
Tasks
Tasks include, but are not limited to:
� Revised Recommendation Y.1530
� Revised Recommendation I.358
� Revised Recommendation I.359 (if necessary)
� Revised Recommendation I.352 (if necessary)
� Revision or withdrawal of Recommendation I.354 (as appropriate).
Relationships
Recommendations: I.350, I.351, I.353, I.356, I.358, Q-series Recommendations defining layer 3 call processing protocols.
Questions: 17/12
Study Groups:
ITU-T Study Group on services and network operations
ITU-T Study Group on cable networks
ITU-T Study Group on switching and signalling
ITU-T Study Group on multimedia services
ITU-T Study Group on data networks
ITU-R Study Group on satellite systems
Standardisation bodies fora and consortia:
ITU-R
ATM Forum
IETF
� List of Questions �
|
