Hi. I've received this call recently on my Sprint Treo 600 that had an 877 area code. I didn't answer during the 2 times it had called. I called back and it turns out I get an automated voice that say to hold and that the phone call will be monitored. And then it says "thank you for calling the loyalty group." Then it says if you are using a sprint phone, airtime charges are free.

I think this is the Sprint Loyalty Group. Has anyone received a call from them or what they want or what it is? Is it a spam call? Thanks