Phone calls in circles? (5)
I believe the answer is:
rings
This might be a double definition.
'phone calls' is the first definition.
'rings' can be an answer for 'calls' (I've seen this before). I'm not sure about the 'phone' bit.
'circles?' is the second definition.
('ring' can be a synonym of 'circle')
'in' acts as a link.
Can you help me to learn more?
(Other definitions for rings that I've seen before include "phones" , "Encircles" , "that may circle planet (not ours)" , "They fix the markets" , "Calls; circles" .)