050 plus

NTT Communications Corporation

About this app

On June 26th, 2023, the acceptance of new applications for 050 plus will be closing.


050 plus is an IP phone application for smartphones which allows you to make calls at fantastic low rates.
Unlike free chat software, you are given a special phone number starting with 050, so you can make and receive calls to mobiles and landlines.
By specifying the smartphone's incoming and outgoing history from the application, you can easily make call back with a simple operation.
See how the monthly subscription fee (free for first month and second month) and call charges compare with what you pay for calls every month.
You'll be amazed at what you could be saving!

■　Calls to landlines　　 8.8 yen/3 mins
■　Calls to mobiles　　17.6 yen/min
■　Calls to other 050 plus users　Free! (Calls to other affiliated 050IP numbers are also free*2)

◆　Monthly subscription fee 330 yen (free for first month and second month)

* Customers are responsible for covering packet data transmission fees which arise from calls or receipt of emails. We recommend the use of a capped packet data plan.
*　Some mobile phone plans offering especially good call rates may result in lower call rates than 050 plus.
*　Click here for the “Good price” page for details of call rates.
https://service.ocn.ne.jp/phone/ip/050plus/
*　All prices are tax inclusive.
*2　Click here for a list of affiliated free call providers.
https://service.ocn.ne.jp/phone/ip/dotphone300/service2.html

About Registration
■Customers enter into a contract when signing up to use 050 plus.
Payment may only be made by credit card.
■050 plus can be used on the handsets and terminals listed by NTT Communications as compatible.
See our website for a list of compatible devices（https://support.ocn.ne.jp/050plus/compatibleApparatus）.

Main Functions

☆IP phone function (both make and receive calls) using an 050 phone number
☆Display the call history of a mobile phone (smartphone).
☆Voicemail (up to 20 messages of 90 seconds or less can be stored for 168 hours)
→Sound files of voice messages (wav format) can be sent as email attachments!
☆Display of Cost-saving *3
☆Contacts list grouping function
☆Function to display the 050 phone number of the free-call recipient
☆Mute, speaker, hold functions

*3 The cost displayed by the "Cost-saving" function is only an estimate and may differ from the actual amount saved.


Click here for the official website
　→ https://service.ocn.ne.jp/phone/ip/050plus/
●Please read the terms and conditions regarding the use of this application. (https://www.nttr.co.jp/corporate_profile/agreement/pdf/r143.pdf)

Ratings and reviews

This app should not exist. I used it for my business but since I can't receive or send calls now, it's useless and very, very troublesome. I'll need to change all my business cards, website, and contact all my clients because I don't have any confidence that I'll ever work. The problem isn't the version or restarting, it's NTT as a company period.

Sometimes has unstable connections, clunky interface, almost zero customization for interface, and recently as of February 2020, I am at times not receiving push notifications of new messages. I have to text the person myself first and then I get older messages.

Not able to proceed in the subscription page, and the English link does not work. Not to mention making any call.

What's new

Fixed the problem that occurred on Android 14 when receiving a call.