System and method for handling calendar events among a plurality of user devices in a communication network are disclosed. The system includes a device manager for interfacing with the plurality of user devices, where the plurality of user devices use different calendar applications and have calendar events in different data formats, and the plurality of user devices include at least a meeting organizer device and one or more attendee devices. The system further includes a calendar gateway for processing the calendar events to form a corresponding connected calendar-data-set for each connected user, where the connected calendar-data-set is stored in a calendar backend server and is shared among one or more devices of each connected user, and an email gateway for communicating the calendar events between the calendar gateway and the plurality of user devices.