asterisk users - Nov 2004 - x100p drive use Tone-based Supervisory Disconnect?

asterisk-dev????
		 x100p drive how to implement   detect Disconnect  ?
        x100p drive detect  Tone-based Supervisory Disconnect?
		how to implement ?
         need to modify  zaptel wcfxo.c ?

	    
?http://www.cisco.com/warp/public/788/signalling/fxo_disconnect.html#topic1

 Understanding FXO Disconnect Problem
Disconnect Signaling ?
Ground-start Signaling Disconnect 
Power Denial-based Supervisory Disconnect 
Battery Reversal 
Tone-based Supervisory Disconnect 

 				

????????dev2003
????????dev2003@mail.ustc.edu.cn
??????????2004-11-09