Ok, so I have several military DNVT (Digital non secure voice terminals) that I have acquired. Some of both CA-67 and TA-1042. Now the manuals (which, anyone who has ever read an Army Technical Manual will know, are not that user friendly) seem to imply that these need to hook into a switching unit before you can use them to access an outside line. Which makes sense if they are digital terminals. Does anyone know of a way to connect these directly to the plain old telephone system? Barring that, does anyone know a cheaper and easier-to-find piece of equipment than a military issue MSE switch that would allow me to use these on a normal phone line?

Thanks in advance for any help you can give me!

https://www.prc68.com/I/CA67.shtml

TA-1042