CDC FAQ
From synwaywiki
How to confirm the CDC series boards have been able to run normally in Asterisk system?
First use the command ‘lsmod’ to see if the driver of the CDC series boards has been loaded, then start the Asterisk software and input ‘show translations’ or ‘core show translations’(according to different versions of Asterisk) after ‘*CLI>’. If the following information appears, it indicates the CDC boards can be normally used.
*CLI>show translations g729 - 3 1 1 3 3 2 5 - - 18 3