ITU-T E.138 ERRATUM 1-2003
Human factors aspects of public telephones to improve their usability for older people; Erratum 1

Standard No.

ITU-T E.138 ERRATUM 1-2003

Release Date

2003

Published By

International Telecommunication Union (ITU)

ITU-T E.138 ERRATUM 1-2003 Referenced Document

• ETR 166-1995 Human Factors (HF); Evaluation of Telephones for People with Special Needs; An Evaluation Method