MetroE and Telephone Taxes

Hey all, My provider here in SoCal is charging me 8% or so telephone taxes on our MetroE products. This seems fishy to me and I can't find any cut and dry rules about private Ethernet / MetroE being under these rules. The same provider selling internet / DIA has no taxes whatsoever. Anyone out there getting charged ULS and other telephone taxes on MetroE circuits? Or can anyone point me to somewhere that shows that it shouldn't be charged telephone taxes? Assume there are no voip calls traversing these circuits. I believe ULS is Federal, the other 3-5% is CA taxes on CLECs. Thx, Sam