[App_rpt-users] Pulse Back

Hi, I sponsor an Echolink node at my QTH which is running on a Windoz PC using a Motorola radio setup to TX on the repeater input and listens to the output. I tried my IRLP/echolink node but they have a 2 sec squelch tail and I had trouble with pulse back. Is there a way or a parameter that can be set to ignore COS for 2 sec after TX? I think that would work but I'm not sure if this is possible with Allstar. Thanks, 73 Greg KD3SU