ITU-T E.331-1991
Minimum User-Terminal Interface for a Human User Entering Address Information into an ISDN Terminal Study Group 1

Standard No.

ITU-T E.331-1991

Release Date

1991

Published By

International Telecommunication Union (ITU)

Latest

ITU-T E.331-1991

Scope

The CCITï (the International Telegraph and Telephone Consultative Committee) is a permanent organ of the Intemational Telecommunication Union (ITU). CCI’IT is responsible for studying technical, operating and tariff questions and issuing Recommendations

ITU-T E.331-1991 history

• 1991 ITU-T E.331-1991 Minimum User-Terminal Interface for a Human User Entering Address Information into an ISDN Terminal Study Group 1