Delayed Ringing
When the extension begins alerting, the same events are sent as if the extension had started
alerting immediately.
Dial "0" for Attendant
The same events are sent as in the intercom call.
Dialtone Disabled
Doesn't affect the CSTA events for that extension. Any time when the dialtone would have
been present, a CSTAServiceInitiated event will be sent.
Direct Trunk Access
A trunk can be directly accessed via CSTAMakeCall request, with the dialed digits
containing "88XX".
DID
Incoming DID calls send CSTADelivered Events with the calling party the trunk number.
DISA
Events with DISA calls are not supported.
Do Not Disturb
The TSAPI client can set or clear DND via a CSTASetDoNotDisturb request. An extension
that makes a call to an extension with DND set will receive a CSTAFailed event.
EM/24 Console
Any programmed keys supported on the K-Tel are also supported on the EM/24 console.
FF-Keys
All FF keys are supported.
Handsfree Answerback
Voice calls send the same events as a tone call. The caller and called party will receive
CSTADelivered events. The call will stay in that state until either the caller hangs up or the
called party answers the call, at which point the CSTAEstablished events are sent.
110
Issued April 2000
Section 470 - TSAPI Programmer's Guide
DBS-92-470