I found some (a lot of) info on Televox.
http://cyberneticzoo.com/robots/1927-televox-wensley-american/
Basically it was a voice activated remote control system. Could Open Sesame! or switch lights and stuff. And was called Herbert. He even had a gf. What's Bernd's excuse?
The blog also features an article from 1927, as screenshots and in written from. Tried to resize the screenshots to larger and give a little contrast to make it more readable.

The blog itself might be noteworthy.
>a history of cybernetic animals and early robots
Probably with many curiosities.