The Ring Speaks?

[Forkbeard]

Elsewhere on the Net a discussion has raged on whether or not the Ring speaks. So I'd like to get comments and an unscientific poll of those present.

In RoTK, "Mount Doom", Frodo and Sam are on their way up the volcano when Gollum attacks them. Frodo beats Gollum off, tells him to get down, he can't do anything to Frodo now.

Then:

Then suddenly, as before under the eaves of the Emyn Muil, Sam saw these two rivals with other vision. A crouching shape, scarcely more than the shadow of a living thing, a creature now wholly ruined and defeated, yet filled with a hideous lust and rage; and before it stood stern, untouchable now by pity, a figure robed in white, but at its breast it held a wheel of fire. Out of the fire spoke a commanding voice.

'Begone, and trouble me no more! If you touch me ever again, you shall be cast yourself into the Fire of Doom.'

So whom do readers think is the speaker here, Frodo or the Ring?