To build applications using ISDN Software, NaturalAccess must be installed on the system.
NaturalAccess telephony functions are subdivided into groups of logically related functions, called services. Each service has a standard API.
A context organizes services and accompanying resources around a single processing context. A context usually represents an application instance controlling a single telephone call. A service can only be opened once on a context.
An event queue is the communication path from a service to an application. A service generates events indicating certain conditions or state changes. An application retrieves the events from the event queue.
For more information about NaturalAccess, see the Dialogic® NaturalAccess™ Software Developer’s Manual.