Office 365

Your go-to Office - anytime and anywhere

Whether you’re working in your office or on the go, you get a highly reliable, familiar office applications in the cloud.


Automatic updates

  • The application save your time for executing complicated updates. You will always work with the latest versions of Office applications.

Turning your Capex into Opex

  • Subscription based service turns your Capex into Opex. No costly upfront investment is required. Different packages are available to suit your business needs.

Tools for teamwork

  • Real time cloud synchronization is available, you can share the files in or outside your company anytime and anywhere.

Built-in security

  • Built-in security plus compliance and privacy controls help keep your data safe. 

For further details, you may refer to our introduction page.


If you require premium sales and technical support,

you may contact KDDI salesperson by calling (852) 29195218 or sending email to for inquiries.

Microsoft Office 365
Exchange Online Plan 1 Business Essentials



Seat Cap

Unlimited 300 (For Each Plan)

Office Hour Helpdesk Support

24/7 Phone Support from Microsoft for Critical Issues

Online versions of Office

- Including Word, Excel and PowerPoint


1TB Cloud Storage (OneDrive for Business)


Email, Calendar (Exchange)

Online meetings, IM (Skype for Business)


Team Sites, Internal Portals (SharePoint)


Enterprise Social (Yammer)

Advanced Services

Active Directory Integration

Mail Data Migration (Office Hour / Non Office Hour)

Optional Optional

* For the details of service's terms, please click here.

To enjoy your service by web purchase

When the order is confirmed, you will receive a confirmation email shortly.

KDDI representative will contact you within 3 business days for system enablement.