CH486816A -
Circuit arrangement to prevent the loss of outgoing assignments in telecommunication systems, in particular telephone systems, with dialing devices
- Google Patents
Circuit arrangement to prevent the loss of outgoing assignments in telecommunication systems, in particular telephone systems, with dialing devices
Info
Publication number
CH486816A
CH486816ACH268569ACH268569ACH486816ACH 486816 ACH486816 ACH 486816ACH 268569 ACH268569 ACH 268569ACH 268569 ACH268569 ACH 268569ACH 486816 ACH486816 ACH 486816A
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 Telefunken PatentfiledCriticalTelefunken Patent
Publication of CH486816ApublicationCriticalpatent/CH486816A/en
H04Q3/58—Arrangements providing connection between main exchange and sub-exchange or satellite
H—ELECTRICITY
H04—ELECTRIC COMMUNICATION TECHNIQUE
H04M—TELEPHONIC COMMUNICATION
H04M3/00—Automatic or semi-automatic exchanges
H04M3/08—Indicating faults in circuits or apparatus
H04M3/12—Marking faulty circuits "busy"; Enabling equipment to disengage itself from faulty circuits ; Using redundant circuits; Response of a circuit, apparatus or system to an error
Landscapes
Engineering & Computer Science
(AREA)
Physics & Mathematics
(AREA)
Astronomy & Astrophysics
(AREA)
General Physics & Mathematics
(AREA)
Computer Networks & Wireless Communication
(AREA)
Signal Processing
(AREA)
Monitoring And Testing Of Exchanges
(AREA)
CH268569A1968-02-221969-02-21
Circuit arrangement to prevent the loss of outgoing assignments in telecommunication systems, in particular telephone systems, with dialing devices
CH486816A
(en)
Circuit arrangement for telecommunications systems, in particular telephone extension systems, with special subscriber intercoms with display of the dialed number
Circuit arrangement for the reception of different characters transmitted in uninterrupted sequence in telecommunications, in particular telephone systems