[Freeswitch-users] DTMF Event is not coming while using playback terminators.

Dear All, I am using Perl ESL::IVR module to develop a simple IVR. I have filtered DTMF events. I have also set playback_terminators to cut the playback when giving the digits. I have faced problem that DTMF event has not come if DTMF given while playing voice files. I have received 'COMMAND' event. I have the following questions. Why the 'COMMAND' event came event filter is on? How to avoid this event in ESL? Thanks, Velusamy