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Dialogic® DM3 and JCT Media Boards

Setting DXBD_MINLCOFF to 0 disables LCOFF events



Trying to configure the software to look for LCOFF events too quickly will cause it not to look for any

Symptom:
The parameter DXBD_MINLCOFF is used to define the amount of time that loop current must be down before receiving an LCOFF event.  Setting this parameter to 0 stops LCOFF events from being received by the application.

Reason for the issue:
Setting DXBD_MINLCOFF to 0 disables LCOFF events.

The following code shows this parameter being set to 0:
 
short sParm = 0; 

dx_setparm(dev, DXBD_MINLCOFF, &sParm);
 

Also note that in order to receive LCOFF events, DM_LCOFF must be specified in dx_setevtmsk().

Fix / Solution:

Two possible solutions:
1) Don't set this parameter.  Allow the default to remain in effect.  This is usually sufficient to identify loop current drop. 
2) If the parameter must be modified, set it to a positive number.


Product List
All analog Dialogic® JCT products
 
 






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