Linksys is reported to have filed the name for this product about 10 years ago, but interestingly, the name is written exactly the same way used by Apple for its "iProducts".
In addition, releasing this product is probably not an accident and Cupertino will have to use another name, if the Apple-branded mobile phone is ever announced. So, they might have already chosen another name as iPhone is already reserved for such device/use. Actually, Apple must have been aware of this since the beginning, and only rumours websites have spread the "iPhone" name on the net.
So, what about "iCall"?
JCJ
