Patent ID: 6393109
Filing Date: 2002-05-21
Classification: H04L,H04M

Abstract:
A method of implementing a local area network in a customer premises telephone network having a plurality of digital and analog end equipment units having respective end equipment unit terminal ends, a private branch exchange (PBX) having digital PBX terminal ends and analog PBX terminal ends, and a plurality of two-wire buses configured for connecting the digital and analog end equipment unit terminal ends to the digital PBX terminal ends and the analog PBX terminal ends for transmission of UPN protocol digital signals and analog telephony signals, the method comprising:connecting low pass filters, each configured for passing the UPN protocol digital signals and rejecting a local area network signal, at each digital PBX terminal end and each digital end equipment terminal end of a corresponding two-wire bus, each two-wire bus that is connected to a corresponding digital PBX terminal end having a first node between the corresponding two connected low pass filters; connecting a first high pass filter, configured for passing the local area network signal and rejecting the UPN protocol digital signals, across the corresponding first node of each of the two-wire buses connected to the corresponding digital PBX terminal end; connecting a second high pass filter, configured for passing the local area network signal and rejecting the analog telephony signals, between the first high pass filter and at least one of the two-wire buses connected to one of the analog PBX terminal ends; and transmitting the local area network signal from a first network node on one of the two-wire buses coupled to the digital PBX terminal end at the corresponding first node to a second network node coupled to another of the two-wire buses connected to one of the analog PBX terminal ends.