I hesitate to open up another bug ticket on this (my older one just having been closed), but after having worked for some number of CVS iterations, my Zap TDMXX stations seem to be struggling again to send DTMF clear enough to be "understood" by IVR equipment I interact with. I can use the same channels with either of my SIP phones and things are just fine. I have listened in, and the tones are very clipped and have some distortion. Don't know for sure when things went astray, but they're hosed with CVS I just downloaded a few minutes ago. Thx. b.