Abstract: In one embodiment, a network interface receives a first calendar meeting report from a first user and a second calendar meeting report from a second user. The first user and the second user are located on an internal network. The first calendar meeting report comprises first meeting attendees and a first calendar meeting time. The second calendar meeting report comprises second meeting attendees and a second calendar meeting time. A processor determines a common meeting attendee from the first meeting attendees and the second meeting attendees. The common meeting attendee is located on an external network, and the first user and the second user are unable to access calendar scheduling data associated with the common meeting attendee. The processor then generates a common calendar on the internal network. The common calendar associated with the common meeting attendee comprises the first calendar meeting time and the second calendar meeting time.