DAHDI faxdetect and Background()

It appears to me that DAHDI fax detection does not work while Background() is running. I see some scattered talk about this on the web.

Question: Is this still true with 1.8.4? If so, is there a preferred solution? I’ve seen talk of NVBackgroundDetect(). Does this work with 1.8.4?


Anyone doing fax detection during Background() that can answer this?

Even if it allowed it, near end cross talk could well compromise the tone detection.