[Bob Ireland]

***demonstrating a device that could remotely turn any phone into a microphone - even with the device hung up***

It vaguely strikes a bell. Of course all phones back then contained a cheap carbon microphone - called IIRC the 'mouth piece'. It would always be a working 'microphone', only cut off by the hang up switch.

My memory ain't good enough to remember how to work around the hang up switch - but agencies like the See Eye Aye long had ways of working that sort of thing out - maybe even the NYPD techs❗

[tang-soo]

My memory ain't good enough to remember how to work around the hang up switch - but agencies like the See Eye Aye long had ways of working that sort of thing out - maybe even the NYPD techs❗

Thanks! That is a topic I have kept filed away ever since I saw that 60 minutes episode. I have searched and searched to no avail. Will follow up if I ever hear anything else. :)