The evolution of intelligent capabilities in conventional switched networks
and data networks has generated opportunities to expose control of network
capabilities to enterprises outside of the network operator's domain. Cont
rol can be exposed via an application programming interface (API), such tha
t service providers can generate a new range of applications that execute i
n their domain but benefit from access to network functionality. This artic
le describes the work of The Parlay Group who have generated API specificat
ions that enable access to network information and provide control of a ran
ge of network capabilities. The Parlay API specifications are open and tech
nology-independent, to encourage the widest possible range of market player
s to develop and offer advanced telecommunication services. This article pr
esents an overview of both the business benefits and the technical architec
ture of the Parlay API.