The SIP Forum Test Framework (SFTF) was created to allow SIP device vendors to test their devices for common errors. And as a result of these tests improve the interoperability of the devices on the market in general.

The SFTF currently consists of two parts:

• The first part is the SIP test framework which allows everyone with a little programming knowledge to write his own tests for SIP devices.
• The other part is is currently a bunch of implemented tests which use this framework to test SIP User Agents for typical known errors.

The SFTF open source code is maintained at the SIP Foundry, which maintains version control systems, contributor agreements, etc. The SFTF is released under the GPL license.

Current Status: Stable

Contributors are welcome to contribute bug fixes and other minor enhancements at any time. If you wish to start larger projects, such as substantially expanding the test cases, etc., please discuss on the Technical Working Group email list.