Tks Mike
we are try with info
on log i see that
2013-05-28 09:04:20.545789 [DEBUG] switch_rtp.c:1975 Send start packet
for [1] ts=141083 dur=160/160/2240 seq=62753
2013-05-28 09:04:20.527806 [DEBUG] switch_rtp.c:2902 RTP RECV DTMF
1:2240
but it's not working again :'(
tks