An update for Spark's Voice Chat module has been applied recently. It was still a "work in progress" made by cstux . So it is not finished and experimental at best. But it fixes some other issues with Spark (on Mac OS X). So we decided to include this patch. If anyone here is willing to test the Voice Chat functionality, you can test it in this build (and newer one, unless it will be removed from the code later):
If you find issues with the updated Voice Chat module, post them in this thread please.
History: at some point a decision was made to switch from proprietary JMF voice chat library to open-source FMJ (libjitsi) (as Spark was moving from a proprietary license to open-source itself). But migration wasn't smooth and Voice Chat has been broken since then (starting with 2.6.0 version). cstux started work on fixing the issues and updating FMJ (libjitsi) to the latest version. But it was never finished. speedy has applied his patch in the current state and so we need testing to see if it's any good https://igniterealtime.org/issues/browse/SPARK-1563
Even if it still broken, at least it fixes some other issues