RestComm Diameter Stack and Services
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FOSSA Status

RestComm jDiameter Stack and Services


RestComm jDiameter provides an Open Source Java implementation of the Diameter standard for Authentication, Authorization, and Accounting (AAA). Implementing the Base Protocol as well as some of the most important and widely used applications, RestComm Diameter allows a fast development of IMS components, such as Application Server (AS), Home Subscriber Server (HSS), Call Session Control Function (CSCF), Subscriber Location Function (SLF), etc. Featuring an extensible architecture to provide support for new applications, as well as to adapt the core functionalities of the stack to a fully customized solution.

Supported Applications

The supported applications includes Base, Credit-Control Application, Ro (Online Charging), Rf (Offline Charging), Sh, Gx, Cx/Dx, Gq', S6a and many more. It also features an extensible architecture that allows additional Diameter application modules to be plugged in.

Advanced Features

RestComm Diameter features several advanced features such as High-Availability and Fault-Tolerance support at stack level (and at RestComm JAIN SLEE Resource Adaptors), statistics gathering for monitoring the stack health, overload monitor to avoid congestion, several management and monitoring options, and many more to assist the development experience.


RestComm Diameter also includes integration interfaces for SIP Servlets and JAIN SLEE Resource Adaptors.


RestComm jDiameter is licensed under dual license policy. The default license is the Free Open Source GNU Affero GPL v3.0. Alternatively a commercial license can be obtained from Telestax (contact form)

RestComm jDiameter is lead by TeleStax, Inc. and developed collaboratively by a community of individual and enterprise contributors.

FOSSA Status

All Open Source RestComm Projects

Open Source


  • JProfiler JProfiler Open Source License

We also maintain a list of all Restcomm contributors on the Restcomm website, to acknowledge contributions by the broad open source community.