On Wed, Apr 01, 2020 at 09:36:23AM -0500, Chris Caudle wrote:
It is also possible that this unnamed telephony
application is for some
reason checking to make sure that the ALSA device is a true hardware
device and not just a software interface.
It doesn't even have to check explicitly. The ALSA Jack plugin doesn't
show up in aplay -l, so if the telephone app is using the same API as
aplay -l, it won't see it either.
OTOH it works with e.g. most browsers.
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FA