Got a call on my work voicemail at 3:30 am it was a woman with a Spanish accent saying "hello" over and over. I listened for a couple minutes and realized it was about a 5 second recording on a loop. The message lasted for 10 minutes. I don't understand the point of this kind of call. I am now getting a least one call a day and many times in the middle of the night from different numbers of a Spanish speaking man or woman. I don't speak Spanish so I have no idea what they are saying and I don't really get how these calls are beneficial to the caller??