ITU-T E.138 ERTM 1-2003
Human factors aspects of public telephones to improve their usability for older people Series E: Overall Network Operation, Telephone Service, Service Operation and human Factors International operation - General provisions concerning users Study Group 2

Standard No.

ITU-T E.138 ERTM 1-2003

Release Date

2003

Published By

International Telecommunication Union (ITU)

Status

Withdraw

Latest

ITU-T E.138 ERTM 1-2003

Scope

GENERAL SECRETARIAT INTERNATIONAL TELECOMMUNICATION UNION

ITU-T E.138 ERTM 1-2003 history

• 2003 ITU-T E.138 ERTM 1-2003 Human factors aspects of public telephones to improve their usability for older people Series E: Overall Network Operation, Telephone Service, Service Operation and human Factors International operation - General provisions concerning users Study Group 2