i get several calls from this number and no voice msg.  i assume its a debt collector but they usually leave a msg.

me too

I keep getting calls from this number also as well as another spam phone number. I wont answer my phone unless I know the number and who is calling me. Always happens after 5 in the evenings too when you are trying to relax. Very annoying!

Just looked up this number and here is what I found:
708-402-9151 is in 708 Area Code, 402 Exchange Code. 708-402-9151 is a Landline phone and registered on January 11, 1997 According to our records the service provider is MCIMETRO, ATS, INC.. The 708-402-9151 phone number is registered in ELK GROVE VILLAGE, IL, which is also known as ELK GROVE VILLAGE, IL

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MCIMetro ATS., Inc.

MCI WorldCom is one of the largest telecommunications companies in the United States, serving local, long distance and Internet customers domestically and internationally. The Company provides telecommunications services to business, government, telecommunications companies and consumer customers, through its networks of fiber optic cables, digital microwave, and fixed and transportable satellite

earth stations. The Company also possesses a global reach with established operations in over 65 countries encompassing the Americas, Europe and the Asia-Pacific regions.

MCI WorldCom, like many other facilities-based CLECs, has a desire to capitalize on the industry's fastest growing segments, namely data/Internet, international and U.S. local phone services. The Company owns and operates its own network in cities across the U.S. and around the world. MCI WorldCom serves millions of U.S. business and consumer customers with an integrated package, including long distance, local (available from more than 100 U.S. markets) data, Internet and other communications services.

They keep calling, I received yet another call this morning and I think next time I will answer it and do a little yelling :)