These guys are not Direct Buy. It is an Indian call center, in India. The number is a VOIP line in Arkansas, which means they are calling you from over the internet. It is not their real number, so that is why you cannot call them back.
They called my Google Voice number, and the telemarketer on the other end evidently has no idea what Google Voice is. Since I did not immediately answer (because the number they called is another VOIP line like what they use and I cannot answer it) he decided to have a conversation with someone at the office, IN HINDI, which is a language commonly spoken in India.
I have copied the actual contents of the phone conversation to my webserver as an MP3 sound file. If you'd like to listen to these idiots jibber to each other in Hindi to prove to yourself that they're foreign, go to http://boogerflicking.com/indiacall.mp3