A reserve agent management system (“RAMS”) allows a user, such as a contact center agent or administrator, to access and edit a reserve schedule. In one embodiment, the reserve schedule indicates times, called reserve times, during the agent's off-hours when the agent would be willing to receive a recall invitation and potentially return to work. When, during operation of the contact center, a determination is made that additional agent resources are needed, agents having compatible reserve times are notified and invited to be recalled. Agents responding and agreeing to be recalled are then recalled by being scheduled to work at certain recall times. In another embodiment, agent's break times can be shifted to potentially accommodate unexpected changes in the required agent resources. The RAMS allows administrators and agents a limited amount of flexibility in adapting agent work schedules to accommodate unplanned needs for agent resources.