Quote Originally Posted by Dave Labrecque View Post
My working theory for Ian's less-than-great nulling experience (he has a digital hybrid; it oughta be pretty great) is that there is some kind of electrical difference between emulated POTS and real POTS. The phone may not know, but it seems that a hybrid "knows." Or, at least, for whatever reason, can't do as good a job with the null.

I could be wrong. Hard to find difinitive information on this stuff.

But -- this just in -- I think I'm no longer looking for answers around this because it has occurred to me that my client can do VoIP calls from the computer (Skype, Hangouts) and forgo the phone line, hybrid, and telephone altogether. Duh.
I have used the hybrid for tons of phone patch sessions, but I don't recall ever recording the hybrid caller output. I probably should do that to see how good/bad the null really is. It might sound a lot better in speakers than in headphones. Of course, one could record the host and the phone on separate tracks and edit or if you get lucky, gate the phone.