Asterisk 1.4 documentation

Hi all, where i can find the doc for Asterisk 1.4 to do this fantastic things?: ā€¦ iew=markup
foe example:

  • Jabber/GoogleTalk integration
    • New speech recognition API for interfacing to different Voice Recognition software packages
    • much more customizable and portable build system
      o also for asterisk-addons
    • Redesign of MusicOnHold configuration settings
    • Manager over HTTP

Thank you :wink: