SEATTLE (AP) -- Apple's customer support website is filling up with messages about the new iPhone 4, which went on sale Thursday. Some people complain that holding the phone in a certain way can interfere with calls.
A stainless steel band that wraps around the sides of the iPhone 4 does double duty as the device's antenna.
Some new iPhone owners say that covering small black lines on the band with their hand decreases call signal strength. In some reports, people say they can induce the iPhone 4 to drop calls by holding it a certain way.
Apple Inc. says such problems are "a fact of life for every wireless phone." The company says people should avoid blocking the sensitive part with their hands or buy a case.