Release condidate snapshot downloads of the Lalande release (PTLib v2.6.0 & OPAL v3.6.0) are now available. This is the last step on this becoming our standard stable release, superceding the Wolf release.

Main features are:

• Instant Messaging. Using several different “standards”: RFC4975, MSRP, T.140, SIP-IM etc etc.
• Much improved support for SIP event handling (SUBSCRIBE/NOTIFY/PUBLISH) using factories so more event packages can be added easily.
• Support for SIP “dialog” event package.
• Support for Shared Line Appearance (aka Multiple Line Appearance, Bridged Line Appearance or Busy Lamp Field)
• Significant improvements in IPv6 support (thanks Yuri Kiryanov!)
• Major enhancements to the video rate controller.
• Removal of the old H.263 ffmpeg plug in and enhancement of the H.263-1998 plug it to take its place.
• H.224 support (H.323 only).
• SBC audio codec plug in.
• G.722 audio codec plug in.
• CELT audio codec plug in.
• SWIG support for use in other languages, Java first.
• Much improved multi-platform sample GUI client, OpenPhone. Now standard test environment replacing simpleOPAL.