ITU-T - E.121
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
inactive
| Organization: | ITU-T |
| Publication Date: | 1 January 1989 |
| Status: | inactive |
| 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.
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.
E.121
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.