On a fresh install of FreePBX Distro, I thought I would give the Digium Addons module a try. When attempting to install the G729a codec, it did not properly work, and I received the following message via e-mail:
localhost.localdomain : Sep 21 23:02:17 : asterisk : user NOT in sudoers ; TTY=unknown ; PWD=/var/www/html/admin ; USER=root ; COMMAND=/usr/bin/yum install -y asterisk-codec_g729a
It appears that the module requires the user asterisk to be in the sudoers file, but it is not. I have since resolved this problem by following the traditional codec installation instructions, but I thought I would post this up to let others know that this may be a problem. I will allow the FreePBX/Digium folks to fight it out about whose responsibility it is to resolve this problem.