TDS and U.S. Cellular to Webcast First Quarter Operating Results Conference Call

CHICAGO, April 29 /PRNewswire-FirstCall/ -- Telephone and Data Systems, Inc.  (NYSE: TDS, TDS.S) and United States Cellular Corporation (NYSE: USM), will hold their quarterly conference call to discuss first quarter operating results on Thurs., May 6, 2010, at 9:30 a.m. CDT. This call is being

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