SRE is a centralized, multi interface Session Routing Engine. SRE offers the possibility to create advanced and innovative routing thanks to its routing logic framework.
SRE works in 2 modes:
- client/server mode:
The client (the call control equipment), asks the server (SRE) which routing policy should be applied.
In this mode, 3 interfaces are exposed by SRE: SIP (SIP redirect server), ENUM and Netaxis Solutions REST API.
- SIP relay:
The SRE receives a SIP request from other network equipment; SRE applies service logic and proxies the request to the correct destination.
The SRE acts as a call stateful SIP proxy server.