scope:

Introduction

This Technical Report (TR) describes the traditional set of operator services and considers how corresponding services could be supported the IP environment of a Next Generation Network (NGN). The services are seen as being composed of three distinct sets of functions:

Delivery of a call to the Next Generation Network (NGN) Operator Services System (OSS)

Call completion from an NGN OSS

Information delivery by an NGN OSS.

Operator service has historically begun with a voice call from the calling party to the OSS (either a live operator or an automated system) to request a particular service. The introduction of the NGN network architecture holds the potential to change how and if traditional operator services are provided. Current standards activities related to the evolution of these services to an IPbased NGN environment are reviewed and gaps are identified.