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.)
H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
H04M15/10—Metering calls from calling party, i.e. A-party charged for the communication
Landscapes
Engineering & Computer Science
(AREA)
Computer Networks & Wireless Communication
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Signal Processing
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Mobile Radio Communication Systems
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Interconnected Communication Systems, Intercoms, And Interphones
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Schaltungsanordnung fuer Fernsprechanlagen mit mehreren Vermittlungsstellen, bei welchen die zur Pruefung von Leitungen und Verbindungseinrichtungen dienenden Pruefstellen nur in wenigen Vermittlungsstellen angeordnet sind