ETSI ETR 261-6-ed.1

Human Factors (HF); Assessment and definition of a harmonized minimum man-machine interface (MMI) for accessing and controlling public network based supplementary services; Part 6: Survey of existing PSTN, ISDN and mobile networks, and a user survey of supplementary service use within Centrex and PBX environments

NORMA vydána dne 31.10.1996

The information about the standard:

Designation standards: ETSI ETR 261-6-ed.1
Publication date standards: 31.10.1996
The number of pages: 70
Approximate weight : 210 g (0.46 lbs)
Country: European technical standard
Kategorie: Technické normy ETSI