> If shorting two FXS lines together damages them they are badly designed.
> Good BORSCHT (battery, over-voltage protection, ringing, signaling,
> hybrid, and test) design should mean they can tolerate this kind of
> thing. They have to very often in the poorly controlled PSTN rats nest.

Generally speaking, 90V A/C out-of-phase from two ringing FXS interfaces
is not a good thing (and yes, our SLICS do support BORSCHT).

Mark

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