Embodiments of the present invention provide a method, system and computer program product for deploying and delivering composite services in an NGN network. A method for managing refresh rates for visual channels in a composite services enablement data processing system can include establishing multiple channels of access to a common session for a composite service and synchronizing changes of state for the common session in a view for each of the channels of access to the service. Notably, voice activity can be detected over one of the channels of access for the common session. Responsive to detecting the voice activity, a refresh rate within a model for the common session can be changed to support a higher refresh rate in a view for another one of the channels of access for the common session. Conversely, the refresh rate can be changed to support a lower refresh rate responsive to not detecting voice activity.