鳴なり分わけ

noun

distinctive ring tones; ringtone differentiation

Refers to assigning different ringtones to different callers or groups, so you can tell who is calling by the sound.

• スマホで友とも達だちごとに鳴なり分わけを設せっ定ていしている。

  I set distinctive ringtones for each friend on my smartphone.