International Flavour

I'm something of a traveller
(Though I don't like to boast),
And I've heard accents in far more
Variety than most.
The French guffaw, the US twang,
The English cockney slur;
I've heard the world so far and fast
That it's become a blur.
But sadly, in my line of work,
We don't get so much choice,
Since when we start to get stuck in
They all scream in one voice.