fs not sending DTMF to MRCP server

Hi,

new to fs, could use some help. i've configured fs to send MRCP to my nuance server. I have voice grammars working, however i can't seem to get DTMF grammars working.

I've tested my grammars with a parsetool and they work fine.

the issue is i don't see fs sending dtmf to my nuance server at all. can't find it in the fs log or the nuance logs when using dtmf, however it works just fine with voice.

Anyone got a starting point for me?

Thanks
bniffen