She gradually became aware that women at AT&T did not receive the same benefits as men, and that there were some jobs which were closed to women. Following a 1970 sex discrimination suit by the Equal Employment Opportunity Commission, Herr and other women at AT&T worked within the corporation for equal rights for women. AT&T settled the suit in 1973.
Over time, Herr became conscious of the disparities in benefits between female and male employees at AT&T, as well as the limitations on certain job opportunities for women. In response to a 1970 sex discrimination lawsuit filed by the Equal Employment Opportunity Commission, Herr and other women at AT&T collaborated with the company to achieve equal rights for females. AT&T resolved the case in 1973.