[Asterisk-Users] troublshooting DTMF

[Joseph]

How to find out why DTMF is not working???

I was running Gentoo versions:
*-0.0.9 
*-1.0.3 
*-1.0.5 and DTMF on my SPA-3000 was working normally.  

I downgraded to CVS-stable and my DTMF is not working.
I'm using dtmfmode=inband in sip.conf and SPA=3000 is set to Auto.

Is there a way to troubleshoot DTMF, if so how?
I would think that Stable version should solid.  

-- 
#Joseph