Svarog is a real time web based call center which is based on AsteriskPBX, including technologies such as portlets, ajax (DWR/Dojo), jsf (MyFaces) and SpringFramework.
OpenSVMS is an open source Short Voice Messaging System. SVMS (also known as VSMS or VoiceSMS) is a telecom service which enables users to send voice clips as messages rather than plain text messages.