This paper provides an overview of a framework for multimodal interface design in the field of Seamless Messaging rM. The objective of seamless messaging is to intelligently tailor message handling based on user preferences and device capabilities. Messages can include voice mail, email, fax, video-mall and pager messages. Incoming messages are dealt with in a manner independent of the user’s physical location. Because of the varying message modalities and the differing capabilities of the access devices the system must be capable of representing numerous modalities and intelligently converting messages of one modality to another. This paper presents an agentbased framework that is currently under development that can provide this functionality.