[BRLTTY] Explicit toggle change

[Stéphane Doyon]

On Fri, 25 Oct 2013, Dave Mielke wrote:

> I've done that more than once. I've even, on occasion, gone as far as rebooting
> the system because I thought my keyboard had gone dead simply because I'd
> forgotten that the braille screen was frozen. :-)

Waw! I don't think I've ever had anything remotely like that happen to me. 
That's pretty bad.

> To me, though, this is another topic which I'd also like to discuss. I myself
> wouldn't mind a single, short tone played every half miute or so while the
> screen is frozen.

No objection.

> Yes, I agree. Back to the speech example. What it should say is "already muted"
> rather than "what kind of stupid action did you just request". I just put
> something there, but, as always, am wide open to improvements. Perhaps you can
> come up with a better tune.

I had a suggestion further down in my previous answer. What do you think 
about it?