Considering how long the ISS has been up there, it could be POTS or something similarly-analog. Dragon→ISS was clear, but ISS→Dragon was not, making me think t

Considering how long the ISS has been up there, it could be POTS or something similarly-analog. Dragon→ISS was clear, but ISS→Dragon was not, making me think that maybe there's some wire or connector in the latter direction that's shoddy (and that'd be more common for analog/POTS than digital/VOIP, where such garbling would be bidirectional and/or nothing would be heard on either end). Then again, I ain't exactly a space telecom engineer, so what do I know? ;) They've since switched back to RF, so apparently it ain't the end of the world.