CH400249A -
Circuit arrangement for telecommunications, in particular telephone systems, in which the connection paths are checked for their occupancy status
- Google Patents
Circuit arrangement for telecommunications, in particular telephone systems, in which the connection paths are checked for their occupancy status
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Publication number
CH400249A
CH400249ACH93462ACH93462ACH400249ACH 400249 ACH400249 ACH 400249ACH 93462 ACH93462 ACH 93462ACH 93462 ACH93462 ACH 93462ACH 400249 ACH400249 ACH 400249A
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 CH400249ApublicationCriticalpatent/CH400249A/en
CH93462A1961-03-171962-01-25
Circuit arrangement for telecommunications, in particular telephone systems, in which the connection paths are checked for their occupancy status
CH400249A
(en)
Circuit arrangement for telecommunications, in particular telephone switching systems, in which speech paths and special signal channels are used to establish a connection
Circuit arrangement for telecommunication systems, in particular telephone systems, in which the subscriber stations transmit control codes and information codes
Circuit arrangement for checking circuits and / or lines for their occupancy status in telecommunication systems, in particular telephone switching systems
Circuit arrangement for telecommunications, in particular telephone dialing systems, in which connections are established and monitored via speech paths and signal channels
Circuit arrangement for telecommunications, in particular telephone systems, in which call number transmitters are used for the automatic establishment of certain connections
Arrangement for telecommunications switching systems, in particular telephone systems, which are constructed in several switching switching stages connected by intermediate lines