Roger Shoaf wrote:
"The Daring Dufas" wrote in message
...
Phone equipment used to be sensitive to the polarity
of the circuit.

Dial phones are able to be used with reversed polarity but touch tone will
not be able to dial if you reverse the polarity.

True on most older TT phones, but not true on later 2500s or phones with
similar guts. No idea what they changed. Never seen it make a
difference on modern disposable corded phones.

--
aem sends...