Interactive Voice Technology for Telecommunications Applications (IVTTA'98)

Torino, Italy
September 29-30, 1998

Automation of Telecom Italia Directory Assistance Service: Field Trial Results

Roberto Billi, Franco Canavesio, Claudio Rullent

CSELT, Interactive Voice Services, Torino, Italy

Directory Assistance Services, which are used to retrieve the phone number of residential or business listings, are generally maintained by Telcos and represent a significant cost for them. Partial or complete automation of these services would imply significant cost savings and speech recognition is a promising technique to achieve this goal, although its full exploitation still presents significant technical challenges. Telecom Italia recently carried out a trial of a system designed to completely automate a portion of requests on a country wide basis without any intervention of the operator, implying recognition of residential names on a subscriber database of about 25 million listings. We describe the speech recognition system and report the trial results.

Full Paper

Bibliographic reference.  Billi, Roberto / Canavesio, Franco / Rullent, Claudio (1998): "Automation of telecom Italia directory assistance service: field trial results", In IVTTA'98, 11-16.