ITU-T E.121-1996
Pictograms@ Symbols and Icons to Assist Users of the Telephone Service - Series E: Telephone Network and ISDN; Operation@ Numbering@ Routing and Mobile Service - International Operation - General Provisions Concerning Users (Study Group 1; 26 pp)

Standard No.

ITU-T E.121-1996

Release Date

1996

Published By

ITU-T - International Telecommunication Union/ITU Telcommunication Sector