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DSL Advances by Peter J. Silverman, John M. Cioffi, Massimo Sorbara, Thomas Starr

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16.6. Service Models by Carriers

In addition to the general requirement for the VoDSL loop extension CPE listed above, the specific service model used by the carrier to provide VoDSL will effect the requirements for the CPE. Five potential service models that could be developed using loop extension over DSL are discussed. These five models are examples of how voice service might be offered over DSL by a carrier. Detailed requirements for CPE would of course be based on the specific filed requirements of carriers actually offering VoDSL loop extension services.

  1. Residential Supplemental Lines. In this service model, the DSL access is used to provide additional voice lines as a relatively low-cost add-on to the DSL data service. The carrier offers ...

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