Legal status (The legal status 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 status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia Spain SA
Original Assignee
Alcatel Espana SA
Standard Electrica SA
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 Alcatel Espana SA, Standard Electrica SAfiledCriticalAlcatel Espana SA
Publication of ES297767A1publicationCriticalpatent/ES297767A1/en
H04M3/22—Arrangements for supervision, monitoring or testing
H04M3/36—Statistical metering, e.g. recording occasions when traffic exceeds capacity of trunks
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Engineering & Computer Science
(AREA)
Signal Processing
(AREA)
Telephonic Communication Services
(AREA)
Abstract
A device for observing switch systems periodically and recording the functions of the circuit and the duration of such functions in establishing a telephone call from one subscriber to another subscriber for a solved class of calls characterized by a switching device (CTE) for connecting the device of observation (DSB) to the connection wires of the telephone recorder (JE) at the beginning of a call, a detector circuit (DT) for detecting the call signals that are compared to determine whether they are calls of a class to be observed , a duration counter (CD) activated, in response to a call accepted by the detector circuit (DT) and a sequential circuit (SQ) to apply the count of the duration counter to the appropriate totalizer (TT1-TT3) depending on the function particular of the circuit. (Machine-translation by Google Translate, not legally binding)
ES0297767A1963-04-221964-03-18Device for observing switching systems (Machine-translation by Google Translate, not legally binding)
ExpiredES297767A1
(en)
Method and circuit arrangement for central monitoring of time measuring circuits for several functional units in telecommunication systems, in particular telephone exchange systems.
A circuit provision for telecommunications installations, especially telephone, in which the figures chosen by the subscribers are stored in records. (Machine-translation by Google Translate, not legally binding)
Circuit arrangement for systematically discovering faults or troubles in switching devices employed in signalling systems and particularly in telephone systems and teleprinter systems