発信音 はっしんおん Meanings Noun tone; beep Kanji 発 emit. Read as ハツ. 信 trust. Read as シン. 音 sound. Read as オン. Example sentences 発信音の後にメッセージをお願いしますが、できるだけ早く折り返します。Please leave a message after the beep and I will get back to you as soon as possible. Jinuma: Japanese Dictionary · Word lists