Pass ring successfully (3,7)
I believe the answer is:
get through
I believe this is a double definition.
'pass' is the first definition.
(getting through is a kind of passing)
'ring successfully' is the second definition.
(in the sense of making a phone call)
(Another definition for get through that I've seen is " Make contact by phone".)
I've seen this clue in The Guardian.
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