Intel 05-1832-002 User Manual
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Voice API for Windows Operating Systems Library Reference — November 2003
dx_wink( ) — generate an outbound wink
dx_wink( )
generate an outbound wink
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!
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! Description
The dx_wink( ) function generates an outbound wink on the specified channel. A wink from a
voice board is a momentary rise of the A signaling bit, which corresponds to a wink on an E&M
line. A wink’s typical duration of 150 to 250 milliseconds is used for communication between the
called and calling stations on a T-1 span.
voice board is a momentary rise of the A signaling bit, which corresponds to a wink on an E&M
line. A wink’s typical duration of 150 to 250 milliseconds is used for communication between the
called and calling stations on a T-1 span.
Note:
Do not call this function on a non-E&M line or for a TDM bus T-1 digital interface device such as
on an Intel® Dialogic® D/240SC-2T1 board. Transparent signaling for TDM bus digital interface
devices is not supported. See the Digital Network Interface Software Reference for information
about E&M lines.
on an Intel® Dialogic® D/240SC-2T1 board. Transparent signaling for TDM bus digital interface
devices is not supported. See the Digital Network Interface Software Reference for information
about E&M lines.
Notes: 1. The dx_wink( ) function is supported on a T-1 E&M line connected to a DTI/101 board. In
addition, the dx_wink( ) function is supported on the DTI/211 board in transparent mode.
2. All values referenced for this function are subject to a 10 msec clocking resolution. Actual values
will be in a range: (parameter value - 9 msec) < actual value < (parameter value)
By default, this function runs synchronously, and will return a 0 to indicate that it has completed
successfully.
successfully.
To run this function asynchronously set the mode parameter to EV_ASYNC. When running
asynchronously, this function will return 0 to indicate it has initiated successfully, and will generate
asynchronously, this function will return 0 to indicate it has initiated successfully, and will generate
Name:
int dx_wink(chdev, mode)
Inputs:
int chdev
•
valid channel device handle
unsigned short mode
•
synchronous/asynchronous setting
Returns:
0 if successful
-1 if failure
-1 if failure
Includes:
srllib.h
dxxxlib.h
dxxxlib.h
Category:
I/O
Mode:
asynchronous or synchronous
Platform:
Springware
Parameter
Description
chdev
specifies the valid channel device handle obtained when the channel was
opened using
opened using
mode
specifies whether to run dx_wink( ) asynchronously or synchronously:
•
EV_ASYNC – run asynchronously
•
EV_SYNC – run synchronously (default)