ボイスカム is a business-oriented communication app developed by NTT TechnoCross Corporation. It allows users to have group intercom conversations without the need to individually call team members, thus improving work efficiency and productivity. With ボイスカム, users can share intercom calls within their group regardless of location, whether they are on different floors or in separate areas. This app supports not only Wi-Fi but also data communication through cellular networks (4G/LTE), enabling intercom calls even in areas without Wi-Fi coverage.

Please note that to use ボイスカム, internet access via Wi-Fi or 3G connection is required. Users are responsible for the packet communication fees associated with downloading the software, making calls, and the app's automatic communication. It is recommended to have a flat-rate packet service to avoid excessive communication charges. Some mobile phone companies or providers may consider this type of "SIP communication" as not covered by flat-rate packet services, so it is advisable to consult with your service provider for more information. It is important to note that the quality of the call may be affected by factors such as the user's device environment, network congestion, and IP communication network service conditions.