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Voice API for Windows Operating Systems Library Reference — November 2003 27
Function Summary by Category
dx_listenecr( )
enables echo cancellation on a specified voice channel and connects the voice channel to the
echo-referenced signal on the specified TDM bus time slot (ECR mode)
dx_listenecrex( )
performs identically to dx_listenecr( ) and also provides the ability to modify the
characteristics of the echo canceller
dx_unlistenecr( )
disables echo cancellation on a specified voice channel and disconnects the voice channel from
the echo-referenced signal (SVP mode)
1.20 Structure Clearance Functions
These functions do not affect a device. The dx_clrcap( ) and dx_clrtpt( ) functions provide a
convenient method for clearing the DX_CAP and DV_TPT data structures. These structures are
discussed in Chapter 4, “Data Structures”.
dx_clrcap( )
clears all fields in a DX_CAP structure
dx_clrtpt( )
clears all fields in a DV_TPT structure
1.21 Syntellect License Automated Attendant Functions
These functions are used with Intel® Dialogic® products that are licensed for specific telephony
patents held by Syntellect Technology Corporation. For more information, see the Voice API
Programming Guide.
li_attendant( )
performs the actions of an automated attendant
li_islicensed_syntellect( )
verifies Syntellect patent license on board
1.22 Extended Attribute Functions
Voice library extended attribute functions return information specific to the voice device specified
in the function call.
ATDX_ANSRSIZ( )
returns the duration of the answer detected during call progress analysis
ATDX_BDNAMEP( )
returns a pointer to the board device name string
ATDX_BDTYPE( )
returns the board type for the device