Japanese phrase
折り返しお電話いたします。 o ri kae shi o den wa i ta shi ma su
Meaning
I will return your call.
When to use it
Promises to call the listener again later. This polite wording suits business calls when an immediate reply is not possible.
Example dialogue
今は手が離せません。 ima wa te ga hana se ma se n
I cannot talk right now.
後ほど折り返しお電話いたします。 nochi ho do o ri kae shi o den wa i ta shi ma su
I will return your call later.