Siemens crosspoint system ESK 400 [four hundred] E
Subtitle: capacity stages 20/150/17 and 60/400/36
By: by Peter Binder.
Edition: 1. Aufl.
Publisher: Siemens-Aktiengesellschaft, [Abt. Verl.]
Published: 1976
Place of publication: Berlin; München
Language: eng
Number of pages: 391
Subjects: Telephone switching systems, Electronic.; Telephone -- Private branch exchanges.
Table of contents: pagenum: 1