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Priority to IT93RM000287ApriorityCriticalpatent/IT1265019B1/en
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Publication of ITRM930287A1publicationCriticalpatent/ITRM930287A1/en
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Publication of IT1265019B1publicationCriticalpatent/IT1265019B1/en
System for the provision of a second telephone line to users' premises which does not involve a further physical pair, comprising a central unit 1 and user equipment 2 in which the telephone lines and the corresponding signals operate in a 2B + D configuration and with 2B1Q line coding. The system performs automatic recovery on the telephone line if the digital channel fails. (Fig. 1) <IMAGE>
IT93RM000287A1993-05-061993-05-06Equipment for the provision of a second telephone line to users' premises without the use of another physical pair
IT1265019B1
(en)
Telecommunication system with a line for digital duplex traffic comprising an arrangement for tapping the digital duplex traffic and arrangement to be used in the telecommunication system