Overview#

Local Exchange (also referred to as a Local Loop, Phone Line, Telephone Line, Telephone Circuit or in the aggregate as the last mile) is the physical link or Telephone Circuit that connects from the demarcation point of the customer's premises to the edge of the common carrier or telecommunications service provider's network which is may be a Central Office

Local Exchange is part of the Telecommunications Network Chain

Local Exchange delivers dial tone to the customer.

In "historical" PSTN terminology this was referred to as a "Class 5" Office but in recent years, many of the "Class 5" Offices have been eliminated and expended to be "Class 4" offices.

More Information#

There might be more information for this subject on one of the following:

• Exchange
• FTTx
• Interexchange Carrier
• Last Mile Loop
• Local Access and Transport Area
• Local Exchange Carrier
• Long Distance Provider
• Telecommunications Network Chain
• Telephone exchange