Generic JTAPI, JAIN JCC, and JAIN Jcat is a framework to allow for the rapid development of Java telephony specification implementations. It does this by reducing the "service provider" coding requirements by an order of magnitude and by providing common services. Also included are sample service providers, including layered providers that can be combined with others to support multiplexing, JAIN JCC support, JAIN Jcat (preliminary), and and remote access.
Divmod Sine is a standards-based voice-over-IP application server, built as an offering for the Mantissa application server platform. It owes much of its development to the Shtoom project, which implements a soft-phone in Python. Sine provides a SIP registrar, SIP proxy, third party call control, voicemail, and configuration through the Web based on Divmod Mantissa.