Telephone On-Hook Current
flipper:
Not much *ON* hook since 20mA would trigger off hook detection, and
that's the 'guaranteed' value. It's less in reality. Up to about 4mA
would probably be ok.
If you are connected to a private PABX, not to a central office.
Here in Italy the maximum resistance tolerated is about 4 M.
Lower resistances will trigger an investigation on circuit losses.
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