Hello - ello - ello - ello - ello - ello - ello!

Is anyone in here? - n here? - n here? - n here? - n here? - n here? - n here?

I am, but not knowing much in the way of PIE and word
origins, all I can do is read and learn. But I am here
even if I cannot contribute much. Thanks for asking.

olle - olle - olle- olle - olleH!

Edited

olle - olle - olle- olle - oleh!


You called?

No room for ola?

And then, there is mushi mushi.

It needed some editorial adjustments to make clear it means :
"The Return of the Echo"
That it worked as a call, tanto meglio.

Hola!
That's about all I feel knowledgeable to contribute.