Webservice or websocket: how to modifield Sound files(IVR)

1. Brekeke Product Name and Version:
3.3.8
2. Java version:
1.7(64bit)
3. OS type and the version:
win8
4. UA (phone), gateway or other hardware/software involved:

5. Your problem:

I'm using setUserProperties method (in webservice) or setExtensionProperties to modify the properties of IVR. I can modified the other fields but three fields of sound files (Greeting message: userprompt.exgreeting, Retry message: userprompt.exreentering, Music on hold: userprompt.hold. Is there any solution so that the third party modify these fields?

Thanks,

I think you have to use IVR to record the voice and put it as a prompt.
There is currently no way to do with the API.

Lucy