I got the same call. I did call back and get a voice mail. Left a message. I get calls from head hunters all the time. I wonder what line of work you all are in. Engineering perhaps? I don't think there is any danger in receiving or calling back. If somebody answer, please don't be foolish and give any personal information. If the call is legitimate the caller will not have any problem in giving you their information for you to crosscheck.
Got the same voicemail on my home landline on 02/18. Expanding his business, my name was passed along to him, etc. Left specific call back times. Deleted voicemail, didn't call back. Sounds like a sham.
I received the same message at 11:38 AM on 2-18-2010 on my landline. Said his name was Adam Schroeder. Stated that my name was passed along to him and that he was currently interviewing due to the expansion of his company. Said he was very interested in speaking to me and that he would be available until 4Pm today or tomorrow between 1:30 and 4:30 Pm. Left his number. I also work in engineering. Maybe some kind of connection, but who knows.
Same message here - Adam Schroeder, my name passed along to him, he'd be in the office until 4 today or 1-4 tomorrow. I'm an archaeologist, so I'm not exactly a target for headhunters.
Message on our land line. Same as others - expanding his business, my name passed on to him (didn't say who passed name on), call during specific times. I'm a public accountant and often get calls but not for an interview!