Ameritech Michigan v. Public Service Commission

In these consolidated cases, we are called on to address whether Ameritech must provide intraLATA toll dialing parity regardless of whether it is afforded the opportunity to compete in the interLATA market, and to review the appropriateness of various Michigan Public Service Commission (psc) orders that were entered to compel Ameritech to provide such *400parity. For the reasons discussed below, we reverse in part and affirm in part the judgment of the Court of Appeals,1 affirm several orders of the psc, uphold the reversal of other orders of the PSC, and reverse the writ of mandamus issued by…