[Freeswitch-users] How to drop Inband DTMF tones while retaining Outofband DTMF tones?

Hi All, Is it possible for FreeSWITCH to drop Inband DTMF tones from the RTP\SRTP stream on an inbound call from a carrier so that this isn't audible in the call recording while still retaining DTMF Outofband (RFC2833) in the SIP messages? If not, how could this be achieved? Thanks, Shaun