Office Mobile Dual is a productivity application designed for Android users, particularly those subscribed to KT's Office Mobile Dual plan. This application enhances corporate communication by offering features tailored for workplace efficiency. Key functionalities include displaying company phone numbers, managing employee contacts, and facilitating group calls of up to 30 participants, with no additional charges for internal calls. Users can also set work hours to block calls outside designated times, ensuring a better work-life balance.

The application requires essential permissions such as notifications for call reception, phone access for making calls, and microphone access for recording. Optional permissions include access to personal contacts for integration and calendar permissions for scheduling. Despite the requirement for certain permissions to access all features, users can still utilize the service without consenting to optional permissions. This app streamlines communication within organizations, making it a valuable tool for professionals.