Operation Manual

Appendix The Applications Interface CAPI 2.0

For more information about CAPI, see the CAPI

Association’s Web site,

http://www.capi.org/

CAPI Features

CAPI 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 channel

• Selection of specific services and protocols on dialing

and in answering incoming calls

• Transparent interface for protocols above OSI Layer 3

• Support for one or several BRIs and PRIs through one

or several ISDN adapters

• Support for multiple concurrent applications

• Message definitions independent of operating sys-

tems

• A message-passing mechanism tailored to specific

operating systems for optimum system integration

• An asynchronous, event-driven mechanism for high

throughput