asterisk users - Nov 2005 - CallProgress breaks DTMF

Hi,

I enabled Callprogress in the zapata.conf , so in the CDR it will log 
other things other then answered (Busy, no answer etc),

but, this seems to break my Polycom's DTMF, i configured RFC2833 for the 
dtmf in the sip.conf, and when callprogress is enabled, the dtmf doesnt 
reach the other end,

Any idea/solution ?

Thanks.

Marco.