Operator services position system (OSPS) architecture builds on the 5ESS® switch Integrated Services Digital Network (ISDN) base to provide modern, flexible operator services. This article details some major operator system innovations provided by the OSPS system architecture.

Toll and assistance and listing services are two important applications of the operator services position system (OSPS). These applications are built on the distributed architecture of the 5ESS® switch and use the building blocks provided by the OSPS software architecture to incorporate new features easily. This article focuses on two toll and assistance features, interflow and more efficient call handling (MECH), as well as the listing services application and a combination of the two applications through the combined services feature to demonstrate the power of the OSPS software architecture.