Description: This object indicates the status of the the audio file:

cached (1): the file successfully downloaded to media gateway cache cache is the memory on media gateway which is used to store announcement files. loading (2): the file in process of downloading invalidFile(3): the file on Announcement File server is too large or corrupted loadFailed (4): timeout when trying to download the file notCached (5): the file is not in cache

Note: The cache is the memory on media gateway which is used to store announcement files. Some of space on the cache is reserved for the permanent announcement files (refer to 'cannoMaxPermanent'), the rest of cache is for the dynamic announcement files.

The 'notCached' is applicable only for the dynamic announcement files in the following cases: 1. The dynamic file age reaches to 'cannoAgeTime', the status of the file will be changed from 'cached' to 'notCached'. 2. If the cache is full for the dynamic files, and if user try to add a new dynamic file, the one of the dynamic files on cache will be removed by LRU algorithm. The status of that file will be changed from 'cached' to 'notCached'. 3. If there is no space for the dynamic files (whole cache is reserved for the permanent file), the status of the dynamic files is set to 'notCached'.