ITU-T E.161-2001
Arrangement of Digits Letters and Symbols on Telephones and Other Devices that can be Used for Gaining Access to a Telephone Network Series E: Overall Network Operation Telephone Service Service Operation and Human Factors International Operation - Number

Standard No.

ITU-T E.161-2001

Release Date

2001

Published By

International Telecommunication Union (ITU)

Latest

ITU-T E.161-2001

Scope

This Recommendation has been amended to include the preferred option for showing the relationship between letters and digits, where both appear on a keypad or dial.

ITU-T E.161-2001 history

• 2001 ITU-T E.161-2001 Arrangement of Digits Letters and Symbols on Telephones and Other Devices that can be Used for Gaining Access to a Telephone Network Series E: Overall Network Operation Telephone Service Service Operation and Human Factors International Operation - Number