Interface between channel units of multiple local exchange carriers
AssigneeLucent Technologies Inc.
InventorsD. Reagan Rice, Ronald R. Brown, Robert L. Adams, III
Life of this patent
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AssigneeLucent Technologies Inc.
InventorsD. Reagan Rice, Ronald R. Brown, Robert L. Adams, III
Estimating the term…
In accordance with the invention, an interface between an incumbent local exchange carrier's central office terminal and a competitive local exchange carrier's remote terminal is provided by an Integrated Services Digital Network interconnection. Such a connection provides two basic data channels of 64 Kbps each and at least one utility channel. The ISDN signal can be carried over a single wire pair. The interface may be used to interconnect one or two digital channels. The channel units may be designed to remove the robbed bits from the data channels and place them in the utility channels. Further, the utility channel may be employed to transmit frame phasing information so that the networks can synchronize their robbed bit signaling so that both networks use the same bit positions for robbed bit signaling thus minimizing data bandwidth reduction due to robbed bit signaling.
A circuit for interfacing between a digital loop carrier that forms at least a portion of a first telephone network interconnecting a plurality of subscribers for providing communications service to said subscribers and a second telephone network for providing alternate communications service to said subscribers, said circuit for interfacing comprising an integrated services digital network interface having a first data channel, a second data channel, and a utility channel, wherein communications data is transported between said first network and said second network over said data channels and wherein said utility channel provides robbed bit signaling information for said first or second data channel.
An interface between a digital loop carrier that forms at least a portion of a first telephone network interconnecting a plurality of subscribers for providing communications service to said subscribers and a second telephone network for providing alternate communications service to said subscribers, said interface comprising:
A method of interconnecting a first telephone network of a competitive local exchange carrier to a second telephone network of an incumbent local exchange carrier that interconnects a plurality of subscribers, said second telephone network comprising a digital subscriber loop, said method comprising the step of:
Dependencies are inferred from the claim text.