Platform SDK: Web Telephony Engine

Logging Events

WTE logging is performed as a result of various events occurring in an application. Following is a list of events that can generate a log entry.

Authoring Error
An error in the WTE application generates this event. The error is explained in the Error Type field of the log.
Call Available
A call is available for WTE. Affected log fields: Caller ID, Called ID, Reason, Application Name, Media, Page.
Session Connection
A WTE application successfully connected to the call.
Navigate
A jump (navigation) occurred in the application. Affected log fields: Page.
Call Transfer
The call was transferred. Affected log fields: Destination Address, Transfer Type.
Call Hung Up
The call disconnected. Affected log fields: Hang Reason.
Session Ending
The session is ending. If a post-call page is defined, this event can occur long after the call disconnects.
Caller Time-out
A time-out event occurred while waiting for input from the caller. For more information, see Handling Time-outs and Non-valid Keys.
Call Information Changed
The call's TAPI information changed. Affected log fields: Caller ID, Called ID, Reason, Application Name, Media.
DTMF Input Error
A non-valid DTMF digit was received. For example, the user pressed a non-valid key. Affected log fields: DTMF Value.
No Application
A call was received on an address where the Called ID field has no application. This event cannot be configured from the WTE administration tool.
Custom Log
This event is generated by the ExOM. Your WTE application can call this event. Affected log fields: Custom Log.
DTMF Received
A DTMF digit was received by the application. Affected log fields: DTMF Value.
Speech Input Data
Speech input data was received by the application. Speech input data is spoken by the caller and processed by an SR engine. This event causes an audio (.wav) file to be saved. Affected log fields: Input Record File.
Speech Input Failure
Speech input was not recognized by the SR engine. The speech input is recorded to an audio (.wav) file. Affected log fields: Input Record File.
Recording
The caller is recording a message. The recorded audio (.wav) file is saved for logging. Affected log fields: Input Record File.
Record Failure
An attempt to record a message from the caller failed. Affected log fields: Input Record File.