[asterisk-users] asterisk 1.8 app_monitor problem

[cfh]

Hi

I have just update my old asterisk 1.4 to 1.8 version and all works good 
but I have a problem with the monitor features.

With the old version this part of dialplan worked without problem :

exten => _90.,1,NoOp(call out interoute REC)
exten => _90.,n,Monitor(wav,${CALLERID(num)}-${EXTEN:2}})
exten => _90.,n,Dial(SIP/provider/${EXTEN},90)


now with 1.8 the same dialplan with the same hw sometimes causes lost 
audio call problem


server: debian 6.0.6

asterisk 1:1.8.11.1-1digium1~squeeze



what can I do ?


best