GlassFish Communications Server Documentation
Oracle GlassFish Communications Server is an easy, fast, and industry-leading application server based on Java Platform, Enterprise Edition (Java EE) and SIP technology for developing and delivering web applications and web services. Use it to build SIP applications and converged applications that are JSR 289–complaint. It provides superior performance, clustering, and high availability features for scalable, carrier-grade services that continue to operate despite software and hardware faults.