Cover

The article “International Standards for Worldwide Communication” was written by
Theodor Irmer, Dipl.-Ing., during his period of duty at the Fernmeldetechnisches Zentralamt
(Central Telecommunication Office) of the Deutsche Bundespost (German Federal
Post Office) in Darmstadt.
Mr. Irmer is currently Head of the CCITT in Geneva.
The other articles were contributed by employees of the Private Communication Systems
and Networks Division of Siemens in Munich :
Dipl.-Ing Albath, Jurgen
Dipl.-Ing. Auel, Richard
Dipl.-Ing. Beckinger, Gunther
Obering. Bitzl,Walter
Dipl.-Ing. Liske, Lutz
Dipl.-Ing. Lux, Reinhard
Maier, Anton
Dipl.-Ing. Mellwig,Klaus Peter
Dipl.-Ing. Ott, Gerhard
Dip1.-Ing. Pribilla, Peter
Puls, Walter
Dipl.-Ing. Ruckdeschel, Hermann
Dipl.-Ing. Schirenbeck, Gunter
Dipl.-Ing. Spath, Rainer
Dipl.-Ing. Stuerner Lienhard
Dipl.-Ing. Thomas, Harald
Dipl.-Ing. Wehrend, Klaus
Wilde, Wolfgang
Dipl-Phys., Obering. Wildgrube, Eberhard
ISBN 3-8009-3849-9
Published and issued by:
Siemens Aktiengesellschaft, Berlin and Munich
0 1985 by Siemens Aktiengesellschaft, Berlin and Munich
All rights reserved
Responsible for the contents:
D . Rost, Erlangen
Publishing director:
H. Koch, Munich, Erlangen
Engineering periodicals :
G. Hubner, Erlangen, Munich
Editors: P. Sprenar, Munich; H. Addicks, Munich
Siemens AG, ZVW 523, Hellabrunner Strasse1, D-8000 Munich 90
Federal Republic of Germany
Telephone (089) 234-8344/-8328
Printed by: Passavia Druckerei GmbH, D-8390 Passau
Printed in the Federal Republic of Germany
Individual articles may be photocopied, also for use within reader’s own companies,
and extras may be reprinted, provided that the author and source are acknowledged.
However, articles may not be reprinted in full without express permission from the editor.
Summaries of individual articles appearing in this journal may be reproduced for reference purposes
and circulated free of charge, provided that the author and source are acknowledged.
4