The Restcomm JAIN-SLEE is a Java Service Logic Execution Environment API, which complies with JSR22 and JSR240 for high throughput, low latency, scalability and software portability for all Restcomm applications and services. It includes support for SIP, SS7, HTTP, MGCP, SMPP, and Diameter resource adaptors (RA). A JAIN-SLEE can be used to create IN or VoIP value added telecommunication services. For example, the Restcomm USSD, SMSC and GMLC are built on top of Restcomm JAIN-SLEE.
The commercial version of Restcomm JAIN-SLEE is supported directly by Telestax and provides support for