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How Do I Know if My Phone Line Is PSTN or RS232?

December 14, 2011

I'm installing a credit card machine at work - the instructions say to ensure its connected to a PSTN line, never RS232.
Can i use the same socket as i use for the fax line?

1 comment… read it below or add one

Michael H April 29, 2009 at 9:25 am

a phone line is PSTN.

plug a phone in, pick it up and if you've got dial tone, your ok.

(assuming your not using an IP phone or something )

Credit card machines just plug into any telephone socket, nothing complicated.

The instructions with your machine are slightly nonsense...all they needed to say was plug into a phone socket.

Hope you get it working before Christmas, i hate for you to miss out on those extra sales !

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