This Recommendation provides an Intelligent Network Capability Set 1 compliant description of UPT Service Set 1 features and procedures. It does not provide an implementation or technology independent description. The Q.76 functional model, information flows, logic for sequencing of information flows and Intelligent Network functional entity actions are those of Intelligent Network Capability Set 1, as described in the 1993 Q.121x-Series of Recommendations of ITU-T Study Group 11.
The service basis of this Recommendation is provided by UPT Service Set 1 as described in Recommendation F.851 [2], “Universal Personal Telecommunication – Service Description. Version 10”. In relation to Version 10 of Recommendation F.851 [2], includes procedures for the following features which are achievable in Intelligent Network Capability Set 1: