How to enable g726 codec

[koolandrew]

I was interested in a low bandwidth codec, and i came across an old article about g726.

 

I noticed that it is listed in the list of available codecs, but i tried to use it with several handsets and softphones, and when i look on the logs i get "unsupported media type" or not in the list of available codecs. I have tried many variants of g726, but even when i make it the only choice, i get the following:

[3] 2016/04/14 12:54:25: Port 61: Update codecs preference size 1, available codecs list is empty

[5] 2016/04/14 12:54:25: Port 61: Available codec list is empty when trying to connect

It seems that the codec doesnt exist.

Can this be resolved.

thanks