Broadcast intent to request a voicemail source to fetch voicemail content of a specific voicemail from the remote server. The voicemail to fetch is specified by the data uri of the intent.
All voicemail sources are expected to handle this event. After storing the content the application should also set NoType:android/provider/VoicemailContract$Voicemails;Href=../../../reference/android/provider/VoicemailContract.Voicemails.html#HAS_CONTENT to 1;