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The last mile, in the context of telecommunications, refers to the technology providing connection services to and from the user’s office or house. In last mile technology, signals are carried via any kind of digital medium from the broad telecommunication backbone toward the comparatively short distance to and from the user’s home or business.
Last mile technology is the final connectivity leg between the telecommunication service provider and an individual customer. Note that the term is figurative -- the actual distance can be more than a mile, particularly in rural areas. In distant and rural areas, it is a challenge for telecommunication service providers to offer high-tech, high speed and high bandwidth services to every single subscriber because of the high cost of using fiber optic cables or wires, as well as maintenance expenses.
The most widely used last mile technologies are DOCSIS (xDSL Cable and Cable Modem Access), fiber optic, wireless access and communication technologies.