[Freeswitch-users] Why I could not detect DTMF when using Originate command

I want to make an automatic IVR call using originate command. I issued command "originate {ignore_early_media=true}sofia/gateway/trunk_1/0860216060 8888" and then I found that DTMF from the receiver side couldn't be detected. On the other hand, if I call to extension 8888, IVR and DTMF work fine.