G.729 and G.723.1 codecs for Asterisk open source PBX Sources Binaries Notes and Troubleshooting Getting help Sources Asterisk 1.4 to 20 are supported. To compile the codecs it is recommended to install Intel IPP libraries for better performance. Alternatively, download and install Bcg729 - a slightly slower implementation written in portable C99. Only G.729 will be available in that case. The cod