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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC CorpfiledCriticalNEC Corp
Priority to JP20453187ApriorityCriticalpatent/JPS6448555A/en
Publication of JPS6448555ApublicationCriticalpatent/JPS6448555A/en
PURPOSE:To eliminate a circuit controlling character dial procedure in a data adaptor and a digital line circuit by adding a data terminal transceiver to an exchange network. CONSTITUTION:The titled dialer included data terminal equipments 4a, 4b, data adaptors 3a, 3b, digital line circuits 2a, 2b, data channels 6a, 6b, an exchange network 1 and an exchange CPU 7 for the exchange network 1 and the exchange network 1 is equipped with the data terminal transceiver 5. The data terminal transceiver 5 includes the exchange CPU interface circuit 8, a data terminal transceiver control CPU 9 and a code conversion circuit 10. Thus, the circuit is simplified.