Private branch exchange for interconnecting data networks
First Claim
1. A private branch exchange, comprising, a plurality of subscriber circuits for connecting a plurality of subscriber terminals via a plurality of subscriber lines;
- a plurality of data packets which are coded into signals outside a frequency range used for communication with the plurality of subscriber terminals, the plurality of data packets being transmitted via a plurality of subscriber lines; and
an active interconnecting device coupled to the plurality of subscriber circuits for extracting the plurality of data packets from a first one of the plurality of subscriber lines and for injecting the extracted data packets into a second one of the plurality of subscriber lines.
3 Assignments
0 Petitions
Accused Products
Abstract
For interconnecting data networks which use cabling, which is actually provided for other purposes, as transmission medium for data packets, a private branch exchange is provided for connecting subscriber terminals via subscriber lines. The private branch exchange has an integrated interconnecting device via which data packets which are transmitted via the subscriber lines and which are coded into signals outside a frequency range used for communication with the subscriber terminals are extracted from a first subscriber line and extracted data packets are injected into a second subscriber line.
18 Citations
10 Claims
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1. A private branch exchange, comprising,
a plurality of subscriber circuits for connecting a plurality of subscriber terminals via a plurality of subscriber lines; -
a plurality of data packets which are coded into signals outside a frequency range used for communication with the plurality of subscriber terminals, the plurality of data packets being transmitted via a plurality of subscriber lines; and
an active interconnecting device coupled to the plurality of subscriber circuits for extracting the plurality of data packets from a first one of the plurality of subscriber lines and for injecting the extracted data packets into a second one of the plurality of subscriber lines. - View Dependent Claims (2, 3, 6, 7, 8, 9, 10)
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4. A private branch exchange as claimed in claim 13, wherein the gateway device is a modem.
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5. A private branch exchange as claimed in claim 13, wherein the ongoing communication network is a public communication network.
Specification