050 plus

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://www.ntt.com/en/personal/services/phone/050plus/charge.html
*　All prices are tax inclusive.
*2　Click here for a list of affiliated free call providers. https://www.ntt.com/personal/services/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（http://support.ntt.com/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
☆Recommend to Friend 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://www.ntt.com/en/personal/services/phone/050plus/charge.html
●Please read the terms and conditions regarding the use of this application. (https://www.ntt.com/content/dam/nttcom/hq/jp/about-us/disclosure/tariff/pdf/c143.pd)