I thought I had to install Speex in order to use it but it turns out that Trixbox 2.8.0.2 already has it installed. The following link has instructions on how to install and then on how to configure it properly.
http://www.trixbox.org/forums/trixbox-forums/trixbox-projects/howto-install-speex-codec
Hello,
Amazing! Not clear for me, how offen you updating your achnid.com.
Dolly