Question [Q] AMR-WB (HD-Voice)? d2att | i747

Bottom line is I'm looking for a way to enable AMR-WB codec. I'm on T-Mobile now.

Is support for AMR-WB in the CSC file?

If so can some make a custom CSC file for i747 that enables HD-Voice (AMR-WB)? I have an unlocked i747 with a SHG-T999L ROM, and baseband i747CUEMJB.

Any help is greatly appreciated.