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 in 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 Layer 3
• Support for one or several BRIs and PRIs through one
or several ISDN adapters
• Support for multiple applications concurrently
• Messages independent of operating systems
• Message-transmission mechanism tailored to specific
operating systems for optimum system integration
• Asynchronous, event-driven mechanism (high
throughput)