This paper presents the first version of the Mobile Synface application, which aims to provide a multimodal interface for telephone calls on mobile devices. The Mobile Synface application uses a talking face; it will simulate realistic lip movement for incoming voices. This application works as a complement for mobile VoIP applications without modifying their code or their functionality. The main purpose of this application is to improve the usability of mobile voice communication for hard of hearing people, or in noisy environments.