Bell Labs TOPES

[Jason T]

A new AT&T video out today showing their (at the time, the Bell
System's) internal CAD and messaging system, TOPES:

https://www.youtube.com/watch?v=VKbFM770dus

Not a lot of info out there about it but it appears to have run on
DEC-10 machines.  There are a none of those to be seen in the video
but there are a few AT&T/Teletype Dataspeed and Tektronix terminals.
Interesting early collaboration system that probably never left Bell -
did anyone here work with it?

-j