Cisco Cisco Computer Telephony Integration Option 8.5 Developer's Guide

The following events are generated, based on the state of the call:

BEGIN_CALL event indicates that the call has entered the setup phase.

CALL_DELIVERED event is generated when the call starts ringing. 

CALL_ESTABLISHED event is generated when the call is answered.

CALL_CLEARED event is generated when the voice connection is 
terminated (e.g. call hung up).

END_CALL even is generated when the logical call appearance (including 
call data) is complete.

In addition to the events and states shown in 

, the following are typical 

call events used for CTI applications:

CALL_HELD event is generated when the call transitions from the active to 
held state.

CALL_RETRIEVED event is generated when the call is removed from hold.

CALL_TRANSFERRED event indicates that the call has been transferred to 
another party.

CALL_CONFERENCED event indicates that a new party has been added to 
the call.

The foregoing is only a brief sample of the events available via CTI OS. The 
complete set of events available for CTI developers is detailed in later chapters in 
this guide.

In addition to being able to respond to asynchronous events, a CTI enabled 
application can make programmatic requests for services via the CTI interface. 
Specifically, the CTI application uses the request-response mechanism to perform 
agent state and third-party call control, and to set call context data.

CALL

BEGIN

CALL
DELIVERED

CALL
ESTABLISHED
(answered)

CALL
CLEARED

CALL EN

TALKING

WRAP UP

RINGING

CALL SETUP