Automation of telephone operator assistance calls

Assignee

• AT&T

Inventors

• Douglas C. Dowden (5 patents)
• Richard W. Hemmeter (7 patents)
• Diane E. Herr (8 patents)
• William K. McCormick (2 patents)
• Robert Petrelli (7 patents)
• Richard J. Piereth (5 patents)
• Samuel M. Salchenberger (3 patents)
• Chander S. Sehgal (4 patents)
• Mahendra K. Verma (3 patents)

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