UNLIMITED FREE ACCESS TO THE WORLD'S BEST IDEAS

close
Already an Engineering360 user? Log in.

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.

Customize Your Engineering360 Experience

close
Privacy Policy

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.

ITU-T E.121

Pictograms, symbols and icons to assist users of the telephone and telefax services SERIES E: OVERALL NETWORK OPERATION, TELEPHONE SERVICE, SERVICE OPERATION AND HUMAN FACTORS International operation – General provisions concerning users

active, Most Current
Buy Now
Organization: ITU-T
Publication Date: 1 June 2004
Status: active
Page Count: 33

Document History

October 1, 2004
Pictograms, symbols and icons to assist users of the telephone and telefax services
A description is not available for this item.
ITU-T E.121
June 1, 2004
Pictograms, symbols and icons to assist users of the telephone and telefax services SERIES E: OVERALL NETWORK OPERATION, TELEPHONE SERVICE, SERVICE OPERATION AND HUMAN FACTORS International operation – General provisions concerning users
A description is not available for this item.
July 1, 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
A description is not available for this item.
January 1, 1995
Pictograms, Symbols and Icons to Assist Users of the Telephone Service - Telephone Network and ISDN - Operation, Numbering, Routing and Mobile Service (Study Group 1) 16 pp
A description is not available for this item.
January 1, 1989
Pictograms and Symbols to Assist Users of the Telephone Service - Telephone Network and ISDN - Operation, Numbering, Routing and Mobile Service (Study Group II) 11 pp
A description is not available for this item.

References

Advertisement