elgana is a communication service offered by NTT BUSINESS SOLUTIONS Corp. It is available on the Android platform and is free to download. However, it requires a separate application by a legal entity or organization.

The main features of elgana include personal and group chat, task management, contact management, and security. It allows users to communicate with their colleagues, assign tasks, and manage contacts in a secure environment.

To install elgana, users need to tap "Get" and install the application. Once installed, they can launch the app by tapping the app icon on their device's home screen. To login, users need to enter their workspace ID, login ID, and password, which will be provided by the administrator.

To use elgana, it requires certain permissions, such as access to photos, media, and files on the device, access to make phone calls, access to record audio, access to contacts, and access to take photos and videos.