To ensure the effective deployment of Intelligent Network (IN) capabilities, performance objectives must be established to serve as a basis for traffic engineering and related network planning. This Recommendation defines performance parameters for a range of IN services and provides corresponding Grade of Service (GOS) performance objectives. Currently only one such objective, namely incremental post-selection delay is addressed.
For the successful introduction of new service capabilities provided by intelligent networks, network planning and engineering should be based on the fundamental requirement of providing acceptable service to the end user. Reasonable grade of service performance objectives have been developed by understanding user expectations and typical implementations of representative IN services.
The Recommendation introduces the notion of service classes that are defined on the basis of end user requirements.
Performance requirements during periods of network congestion are for further study.