I know wath did you say, but when import a wav files, in NBX 6_5__18 SIP mode and NBX Messaging G729 all sample rate i try with wav G729 not recognized and can not import into NBX.
ADPCM is only support in nbx not in SIP mode, in SIP mode only G711 and G729.
Also i see three folder you say but now i do not use, in the past is very simple, for example i download the wav files i record with phone in folder by ftp and with a sample player o recording windows xp, i see wath compression nbx support. Now when i record the msg with phone it's difficult to play this file.
Infact my question is wath kind of G729 wav file or sample rate support on NBX, in a electronic guide, help or so don't describe this particular and it's difficult to try on internet this particular.
I try from 8000 to 48000 sample rate but nothing work.
N.B.: if my customer choose to change from NBX "standard mode" to SIP, lost VM and AA recording, when in SIP mode if change from G711 to G729 or from G729 to G711 lost another way the VM and AA recording!