Common-ISDN-API

ALSO CALLED: Common Application Programming Interface, Common ISDN Application Programming Interface, CAPI, Common API
DEFINITION: CAPI (Common Application Programming Interface) is an international standard interface that applications can use to communicate directly with ISDN equipment. Using CAPI, an application program can be written to initiate and terminate phone calls in computers equipped for ISDN. Computer telephony (CTI) applications can be written for ISDN users. Officially, CAPI is referred to as Common-ISDN-API  … 
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COMMON-ISDN-API DEFINITION (continued): …  and is embodied in ETS 300 838 ("Integrated Service Digital Network (SDN); Harmonized Programmable Communication Interface (HPCI) for ISDN." ETS refers to standards from the European Telecommunication Standards Institute (ETSI). The standard is internationalized by recommendation T.200 "Programmable communication interface for terminal equipment connected to ISDN" from the International Telecommunications Union (ITU).CAPI can be compared with the Intel-Microsoft "standard" programming interface, the Telephony Application Program Interface (TAPI). CAPI includes signaling and data exchange protocols … 
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