Since IT technology is becoming popular in recent years, the support method and technology of the remote collaborative communication work using the Internet is becoming to familiar. Although many systems which offer multimedia communication for remote collaborative work have been reported so far, such systems as share the contents interactively are hardly reported yet. In this paper, we report development of FLAVA system which makes it possible to communicate by voice telephone call while two or more users perform shape manipulation interactively sharing form data as Web contents.