To clarify, it is not a full on credit card machine, rather a credit card reader.
I've found to references to this being possible, but no product links yet. https://supportforums.cisco.com/discussion/11760231/aux-port-cisco-ip-phone-794x https://supportforums.cisco.com/discussion/10250386/aux-port-cisco-7940-ip-phone On Wed Jan 21 2015 at 9:51:41 AM Anthony Holloway < avholloway+cisco-v...@gmail.com> wrote: > All, > > I just ran into something very strange, were a customer is stating they > are able to use a credit card machine via the AUX port on the back of a > 7841. > > The 7841 data sheet and admin guide would suggest that this is not > possible, as their only reference to this port is with the use of a headset. > > Now, I know these ports can be used for troubleshooting and/or hacking the > phones, but I have not heard of a legit use like this before. > > Can anyone comment on this? >
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