AT&T Corp. has filed a lawsuit against MCI and Onvoy Inc., alleging the two companies have cost AT&T tens of millions of dollars by rerouting U.S. telephone calls through Canada in an effort to stick ...
AT&T Corp. has filed a lawsuit against MCI and Onvoy Inc., alleging the two companies have cost AT&T tens of millions of dollars by rerouting U.S. telephone calls through Canada in an effort to stick ...
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