I don't know about clunky, and I don't remember the console looking that bad. A 40 cabinet was about the size of two freezers side by side. It had to because the crossbars fit in the top half of the cabinet (you put them in by hand and it was not much fun if you had to add a switch on the end) and the trunk cards and control unit fit on the bottom. Keep in mind the L-40/80/100 family is hard-wired crossbar and the Mitel was electronic.

Big difference.

Our next offering was the Stromberg CrossReed PBX. IIRC the console had both a rotary dial and a keypad. You could dial internally with the keypad, but the outside used the rotary dial.

Carl

This model is end of life