Collaboration and interaction systems focus on applications such as calendaring, scheduling, workflow, integrated voice response (IVR), and other enterprise applications that help individuals and workgroups communicate efficiently.
Real-time and near real-time communications systems focus on fundamental communication between individuals using applications or systems such as conferencing, instant messaging, traditional and next-generation private branch exchanges (PBX), and paging.
Transactional and informational systems focus on providing access to m-commerce, e-commerce, voice Web-browsing, weather, stock-information, and other enterprise applications.