Gizmo Project Adds Conference Calling

San Diego-based SIPphone has tapped Vapps, a provider of VoIP conference calling, to provide free conference calling services for users of the Gizmo project, an open-source, SIP-based voice over IP calling service. Vapps said that its conference calling service will enable Gizmo subscribers to connect multiple users over the Internet. Vapps platform provides traditional conference calling features such as participant management.