There is something wrong about that command.
I could not change it also on my gateway.
The manual that I have does not mention that feature at all.
It tops short on that page and goes to DSP commands.
I went to the Quintum site, got into the new CLI and also do not have any mention of that feature.
Very extrange. I tried shortening the command, taking out the last few letters, with no luck.
Noname