Crossword Genius

Making a call, may one have this in one’s ears? (7)

Ross

I believe the answer is:

I'm a little stuck... Click here to teach me more about this clue!

'making a call' is the definition.

'one have this in one's ears?' is the wordplay.
I cannot really see how this works, but
'one' could be 'i' (Roman numeral) and 'i' is found in the answer.
'in' is found in the answer.
This may be the basis of clue (or it may be nonsense).

'may' is the link.

Can you help me to learn more?

(Other definitions for ringing that I've seen before include "Chiming", "Telephoning", "Campanology", "Having resonant sound", "Resonant; forceful".)

I've seen this clue in The Times.