Formal to Client
Workplace · Phone
You
〇〇会社の田中と申します。お時間のある時に折り返しご連絡いただければ幸いです。
〇〇かいしゃのたなかともうします。おじかんのあるときにおりかえしごれんらくいただければさいわいです。
My name is Tanaka from [Company]. I would be grateful if you could return my call at your convenience.
Romaji: Maru-maru kaisha no Tanaka to moushimasu. O-jikan no aru toki ni orikaeshi go-renraku itadakereba saiwai desu. / Reply Romaji: (voicemail response scenario)
Reply
（留守番電話のため返答なし）
（るすばんでんわのためへんとうなし）
(No reply — voicemail context)
Gesture & etiquette
Phone context — speak slowly and clearly when leaving a voicemail. State your phone number twice: once during the message and once at the end. Many Japanese people immediately return calls when they see a missed call, so a voicemail confirms the urgency level.
Japanese voicemails should be brief, clearly structured: 1) Company and name, 2) Callback number, 3) Reason for calling (brief), 4) Preferred callback time if any. 「折り返しご連絡いただければ幸いです」(I would be grateful for a return call) is more polite than 「電話してください」. Speak slowly and repeat your number.