4 ms·The voltages used are very low, so it's more about adding impedance I'd say.by danielbln 2y agoThe voltages used are very low, so it's more about adding impedance I'd say.dghughes 2y agoLiterally and electrically impeding.Bene592 2y agoIf it's also used as an analog phone line don't touch, if it's ringing you will get shockedanyfoo 2y agoI guess if you are lucky, the added capacitance might rotate the impedance (on a smith chart) into a better range?