2. Getting involved
  3. Standards Committees
  4. DKE
NA 022

DKE German Commission for Electrical, Electronic & Information Technologies of DIN and VDE

About DKE Projects Drafts Publications Documents withdrawn without replacement National committees European committees International committees
Technical rule [CURRENT]

ITU-T E.131
Subscriber control procedures for supplementary telephone services

Title (German)

Teilnehmersteuerprozeduren für zusätzliche Fernsprechdienste

Edition 1988-11
Original language English
Price On Request
Order from DIN Media
Table of contents