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From: zippy@chaos.cs.brandeis.edu (Patrick Tufts)
Newsgroups: comp.dcom.telecom
Subject: Re: Questions About the GTE Airfone
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Date: 10 Dec 90 16:05:00 GMT
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Additional Musings on the GTE Airfone.

According to the original post, it sends your credit card info at
300 baud somewhere for verification.

Additionally, it transmits calls between 894MHz and 896 MHz (5kHz
spacing).

Does this mean that anyone with a scanner and a modem can grab
hundreds of credit card numbers, expiration dates, ...

Or is the card info encoded before transmission?


Pat