Back in the day CALEA was voluntary up to the point of a court order to customer. At that point we had to do some re-routing and install one of their devices at provider cost. This was early 90's - IP Fabrics still carries it i think -
https://www.ipfabrics.com/products/deepsweep/index.html > -------- Original Message -------- > Subject: Speculation as to why printer manufacturers have forensic tracking > dots > Local Time: November 18, 2017 2:58 PM > UTC Time: November 18, 2017 10:58 PM > From: [email protected] > To: [email protected] > > https://www.eff.org/pages/list-printers-which-do-or-do-not-display-tracking-dots > >> (Added 2017) REMINDER: IT APPEARS LIKELY THAT ALL RECENT COMMERCIAL COLOR >> LASER PRINTERS PRINT SOME KIND OF FORENSIC TRACKING CODES, NOT NECESSARILY >> USING YELLOW DOTS. THIS IS TRUE WHETHER OR NOT THOSE CODES ARE VISIBLE TO >> THE EYE AND WHETHER OR NOT THE PRINTER MODELS ARE LISTED HERE. THIS ALSO >> INCLUDES THE PRINTERS THAT ARE LISTED HERE AS NOT PRODUCING YELLOW DOTS. > > I have a theory as to why. CALEA allows the government to compel "a > manufacturer of telecommunications transmission or switching equipment" to > modify the equipment. Under that or a similar law, printing manufacturers are > compelled to put tracking information onto paper.
