I have a V300 too. Do you have it on your home scren or the outer screen?
Could it be GPRS?
Or maybe, like we have here in Turkey, your network has something like ''push and talk'' just like a walkietalkie.
sorry, couldn't help much.
on my front screen a speech bubble with three dots has appeared, does anyone know what this means. I have had this phone for bout 6 months and have never seen it before. None of the manuals explain what it is.