Operation Manual

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Appendix B: The Applications Interface CAPI 2.0

English

B.2 Features

Common ISDN API offers a number of important

features:

• Support for basic call features such as call set-up and

clear-down

• Support for multiple B channels for data and/or voice

connections

• Support for multiple logical data connections within a

single physical connection

• Selection of specific services and protocols on dialing

and in answering incoming calls

• A transparent interface for protocols above OSI Layer

• Support for one or several BRIs and PRIs through one

or several ISDN adapters

• Support for multiple concurrent applications

• Message definitions independent of operating systems

• A message-passing mechanism tailored to specific

operating systems for optimum system integration

• An asynchronous, event-driven mechanism (high

throughput)