SigComp Server Test Suite Data Sheet
Test Suite: SigComp Server Test Suite
Direction: Server
Signaling Compression (SigComp) is a solution for compressing messages generated by application protocols such as the Session Initiation Protocol (SIP) and the Real Time Streaming Protocol (RTSP). The decompression functionality is provided by a Universal Decompressor Virtual Machine (UDVM) which provides an instruction set optimised for decompression algorithms. The bytecode for decompressing the compressed message is transmitted with the message.
Used specifications
| Specification |
Title |
| RFC3320 |
Signaling Compression (SigComp) |
| RFC3485 |
The Session Initiation Protocol (SIP) and Session Description Protocol (SDP) Static Dictionary for Signaling Compression (SigComp) |
| RFC4464 |
Signaling Compression (SigComp) Users’ Guide |
| RFC4465 |
Signaling Compression (SigComp) Torture Tests |
| RFC4896 |
Signaling Compression (SigComp) Corrections and Clarifications |
Tool-specific information
| Tested messages |
Specifications |
| SigComp message |
RFC3320 |
| Supported features |
Specification |
Notes |
| UDP Transport |
RFC3320 |
|
| TCP Transport |
RFC3320 |
|
| Compressor |
RFC3320 |
Uses DEFLATE compression algorithm. |
| UDVM |
RFC3320 |
|
| State Handler |
RFC3320 |
|
| SIP and SDP Static Dictionary |
RFC3485 |
|
| Unsupported features |
Specification |
Notes |
| Feedback mechanism |
RFC3320 |
Suite doesn’t include feedback request in SigComp messages and doesn’t handle request if it receives one in SigComp message. |
| Additional SigComp Mechanisms |
RFC4464 |
DEFLATE UDVM bytecode used in suite. No other parts of the RFC are implemented. |
