A technique is provided for delivering content to a user. The user sends at least one quality indicator to a first content-delivery device, referred to as a secondary device. The indicator relates to delivery of a portion of the content by a second content-delivery device, referred to as a primary device. When the secondary device detects an event that might affect the delivery of the content by the primary device to the user, on the basis at least of the quality indicators relating to at least a delivery of content by the primary device, it commands the user to transfer from the primary device to the secondary device in order to enable the secondary device to deliver portions of the content that have not been delivered by the primary device.