[Calvin Locke]

That would be just like humans to miss the phone call :)

Heck, the "SETI Crowd" only *sent* one intentional message outbound. And that was back in 1974.

(Arecibo Message)

So missing that one "phone" call would be that hard to do.

However, NORAD, in particular, and a few other countries in general, constantly send out these high powered radar pulses looking for nasty, inbound ICBMs...

Unless the really nearby people are extremely wave-length deaf, you may have to wait a bit longer for any response.

[crystalk]

The response last year by crop glyph in England, right on the Observatory grounds, to our Arecibo transmission in 1972, which was not merely an echo or mirror of what we sent, but sent an altered response back to us, saying where they were, what they looked like, and the like...

is nowhere mentioned in this thread.