From July 2025, NTT Communications has changed its name to NTT DOCOMO BUSINESS.
NTT DOCOMO BUSINESS
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NTT DOCOMO BUSINESS Business Portal
Which services are supported in this portal?
NTT Communications' support information. This page shows frequently asked questions on NTT Communications Business Portal in detail. Which services are supported in this portal? Following services are
COTOHA Translator
I'd like to know how to setup and how to use it.
This page explains how to use "COTOHA Translator". I'd like to know how to setup and how to use it. After logging in to COTOHA Translator, you can get manuals from the help menu (? icon) upper right o
Why do translation results sometimes differ depending on the presence or absence of punctuation?
FAQ for COTOHA Translator Why do translation results sometimes differ depending on the presence or absence of punctuation? It is a characteristic of NMT technology. The results may vary depending on p
Arcstar Universal One Virtual
I cannot connect to the Virtual Network via vApp.
NTT Communications' support information. This page shows frequently asked questions on Arcstar Universal One Virtual in detail. I cannot connect to the Virtual Network via vApp. STG→商用 If you cannot c
Display [330] error code when connecting to vApp(Windows).
NTT Communications' support information. This page shows frequently asked questions on Arcstar Universal One Virtual in detail. Display [330] error code when connecting to vApp(Windows). There might b
What is the meaning of vApp (Windows) error codes?
NTT Communications' support information. This page shows frequently asked questions on Arcstar Universal One Virtual in detail. What is the meaning of vApp (Windows) error codes? The meaning of vApp (
About profile check of vApp (iOS/MacOS)
NTT Communications' support information. This page shows frequently asked questions on Arcstar Universal One Virtual in detail. About profile check of vApp (iOS/MacOS) If you are using this service wi
How can I change login ID （email address）?
NTT Communications' support information. This page shows frequently asked questions on NTT Communications Business Portal in detail. How can I change login ID （email address）? You can change login ID
Is API available?
FAQ for COTOHA Translator Is API available? We provide API option for customers of Enterprise Plan and Business Plan. [No.pid2300000v5u] Is API available? | NTT DOCOMO BUSINESS customer support
Which contracts can I see in this portal?
NTT Communications' support information. This page shows frequently asked questions on NTT Communications Business Portal in detail. Which contracts can I see in this portal? You can see contracts of
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