Wrong file name when video uploaded to ASP.NET webservice

[Idan]

I am trying to upload a video to a webservice. Everything seems to go well but I always get the filename "image.jpg" on the server when checking the HttpContext.Current.Request.Files[0] in C# / Webservice.

When I checked the path in:

transfer.upload(path, IMAGE_WEB_SERVICE +  "SaveVideo", success, fail, options);

I see: "file:///mnt/sdcard/DCIM/Carmear/VID_20131015_153223.3gp" --- which is the correct path and file extension. 
So why when the file is being transferred to the webservice I get it as "image.jpg"?

Thanks in advance.

[Idan]

Found the answer:

"If not set defaults to "image.jpg". (DOMString)".

http://docs.phonegap.com/en/1.5.0/phonegap_file_file.md.html#FileUploadOptions