ITU-T E.115-1995
Computerized Directory Assistance - Telephone Network and ISDN - Operation@ Numbering@ Routing and Mobile Service (Study Group 1) 26 pp
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ITU-T E.115-1995
Standard No.
ITU-T E.115-1995
Release Date
1995
Published By
ITU-T - International Telecommunication Union/ITU Telcommunication Sector
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