Free

Details

Released
February 28, 2019
Updated
September 7, 2026

Features

SUBLINE BIZ screenshot #1 for iPhone
SUBLINE BIZ screenshot #2 for iPhone
SUBLINE BIZ screenshot #3 for iPhone
SUBLINE BIZ screenshot #4 for iPhone
SUBLINE BIZ screenshot #5 for iPhone
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About

This service provides a dedicated 050 business phone number for your smartphone, eliminating the need for a separate work phone. It offers features like call recording, custom call routing, and cloud-based contact management to streamline business communication and reduce costs.

✓Dedicated 050 business phone number
✓Use one smartphone for two numbers
✓Call recording
✓Customizable call routing
✓Cloud phonebook
✓Simplified billing
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What's New in SUBLINE BIZ

3.9.11

September 7, 2026

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User reviews

あ

海外からかけているんですか?と聞かれるくらいの音質、繋がりにくさ、アプリもすぐ強制終了される

長時間は不向き?

使えるが、少し使うと電波が凄く悪くなり、まともに会話できない程途切れ途切れになる。

着信ならない

ウェブサイトのヘルプの内容も試しましたが、着信が鳴りません。楽天の050アプリSmartalkは問題なく使えていたのでサービス終了が残念でなりません😢

受話エラー頻発

重要なビジネス電話何度もエラー出ってしまい...

悪徳

ログインのたびに番号が設定されていないといって番号を追加させられる。その度にお金をとられる。悪徳だし、そもそもこの番号が必要時に実際にきちんと使えるかあやしい。
小銭程度だがお金を捨てただけ。

Developer apps

FAQ

What is SUBLINE BIZ?

SUBLINE BIZ is a service that provides a dedicated 050 business phone number for your smartphone, allowing you to separate work and personal calls without needing a separate device. It aims to reduce communication costs and improve management efficiency for businesses.

Can I use SUBLINE BIZ on my personal phone?

Yes, SUBLINE BIZ is designed to be installed on your smartphone, enabling you to use a separate 050 business number alongside your personal number. This eliminates the need for a dedicated work mobile phone.

How does SUBLINE BIZ help with call management?

SUBLINE BIZ offers advanced call routing options, allowing you to set up to 10 different patterns by combining call duration, voice messages, and forwarding or voicemail settings. It also includes call recording and a cloud phonebook for better organization.

Is there a contract or commitment for SUBLINE BIZ?

No, SUBLINE BIZ does not have any contract terms or binding periods. You can sign up and start using the service immediately through their website, offering flexibility for businesses.

What kind of businesses can use SUBLINE BIZ?

SUBLINE BIZ is suitable for businesses of all sizes, from 2 to 100 employees. The service is designed for corporate use and offers management features to improve operational efficiency.

How is billing handled with SUBLINE BIZ?

All call charges are consolidated and billed to the company, eliminating the need for individual staff to handle expense reports or reimbursements. This simplifies the accounting process for both administrators and employees.

Does SUBLINE BIZ have ads?

No, SUBLINE BIZ does not contain advertisements. The service is free to use and focuses on providing business communication tools without interruption.

What devices are supported by SUBLINE BIZ?

SUBLINE BIZ is available for iPhone and iPod devices. The app was last updated on September 7, 2026, with version 3.9.11.