Although (possibly, depending on the environment, wiring, etc) technically possible, TeleFlow currently supports only (as you said) 8kHz, 16-bit Mono Windows PCM Wav files. This is about as high a grade of audio as can be run across telephone networks, so "better" audio is (generally) unnecessary.
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<br>This does mean that what you desire is not presently possible in TeleFlow, and adding something for this purpose would require custom engineering. If this is of interest, contact
sales@engenic.com. Provide as much detail about the functionality desired, environment to install in, etc. as you can
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<br>Also, TeleFlow hasn't been tested with an LD101A card, and it doesn't currently appear to be released. This is really just a point of caution, since we don't know if this will be a problem... LD cards released to-date have "just worked" when used with TeleFlow, ever since support was first verified/tested for the LD409.