LevelOne VOI-8001 - Manual (Page 75)

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 Prompt voice for replace dial tone:
Use a customize voice file to replace the dial tone
 Warming Prompt after VoIP out failure:
Annunciate a customize voice file when VoIP call failure.
 No PSTN Line Connected :
Annunciate a customize voice file when there is no trunk connected to
the PSTN port and failure to call via PSTN line.
 Can not register to server warming prompt :
Annunciate a customize voice file when the gateway failure to register to
Register Server.
 Prompt voice for VoIP call in :
When Remote gateway call in the gateway, if enable this function, the
gateway will annunciate a customize voice to remote gateway user to
ask the destination number , this function must work with the setting
rule on /VoIP Setup/Routing Setup/VoIP Call In IVR .
For enable the prompt beep or voice annunciation function, please select  to
enable the function and click Modify
Caution: If enable both prompt beep and Voice annunciation on the same
function, only
the voice annunciation will work and will not hear the beep sound.
Procedure to upload customize voice wave file:
1.Select the function index you want to modify.
2.press brows , select the content voice file.
3 Press Restore to upload and save.
4.To keep the voice file permanently, press Save Flash to save it
*. The gateway only accepts the G.723.1 or G.711 format voice file, and all
the 5 files size totally can not exceed 384KB.