[Freeswitch-users] DTMF problem

Question: I have FS 1.0.5 installed on a Centos 5.4 server box. I hope there¹s a simple answer to this question. I¹m having problems in particular when connecting to a outside conference line on a completely different phone system entering numbers that the receiver should accept. For example, call into a conference line, auto-attendent ask for the pin number, I then enter pin number, but The receiving ivr tells me I¹ve entered the wrong pin number. I¹m assuming that I¹ve reached a timeout and the ivr is letting me know that I¹ve entered the incorrect pin number. My thinking is that this is a DTMF issue. I¹m new to FS so not sure if I need to enable something in my dialplan or not. Thoughts? Thanks in advance Sean