Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AgfiledCriticalSiemens Ag
Publication of CH143530ApublicationCriticalpatent/CH143530A/de
H04Q5/00—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange
H04Q5/18—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange with indirect connection, i.e. through subordinate switching centre
H04Q5/22—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange with indirect connection, i.e. through subordinate switching centre the subordinate centre not permitting interconnection of subscribers connected thereto
Landscapes
Engineering & Computer Science
(AREA)
Computer Networks & Wireless Communication
(AREA)
Alarm Systems
(AREA)
Interconnected Communication Systems, Intercoms, And Interphones
(AREA)
Mobile Radio Communication Systems
(AREA)
CH143530D1928-02-081929-02-04Fernsprechanlage mit gemeinsamer Fernsprechleitung.
CH143530A
(de)