Tandem Office Switch definition

Tandem Office Switch or “Tandem(s)” are used to connect and switch trunk circuits between and among other Central Office Switches. A Tandem Switch does not include a PBX.
Tandem Office Switch is a switching system that establishes trunk-to- trunk connections. Local tandems switch calls from one end office to another within the same geographic area, and access tandems switch traffic from host or end offices to and from an Interexchange Carrier. A tandem office switch can provide host office or end office switching functions as well as the tandem functions. A Central Office Switch may also be employed as a combination End Office/Tandem Office Switch.
Tandem Office Switch or “Tandem Switch” means/refers to a switch that has been designed for special functions that an End Office Switch does not or cannot perform. A Tandem Office Switch provides a common switch point whereby other switches, both Tandem Office Switches and End Office Switches, may exchange calls between each other when a direct Trunk Group is unavailable. The term “Tandem Office” and “Tandem” are used to refer to the building in which the Tandem Office Switch resides, but are also used interchangeably to refer to the switch within the building.

Examples of Tandem Office Switch in a sentence

  • The geographical exchange area of the associated Rate Center must be served by an End Office Switch or other End Office Switches sub-tending theAT&T-22STATE Tandem Office Switch where a Type 2A Trunk Group is located, or at the End Office Switch, where a Type 2B or Type 1 Trunk Group is located.


More Definitions of Tandem Office Switch

Tandem Office Switch. Tandem means to connect in series. A Tandem, Tandem Switch or Tandem Office Switch connects one trunk to another for the purpose of exchanging Local Traffic. It is an intermediate (Class 4) switch between an originating telephone call and the final destination of the call.
Tandem Office Switch or “Tandem” means a Switch used to connect and switch Trunk circuits between and among other Central Office Switches. A Tandem Switch does not include a PBX.
Tandem Office Switch or “Tandem Switch” means a switch that has been designed for special functions that an End Office Switch does not or cannot perform. A Tandem Office Switch provides a common switch point whereby other switches, both Tandem Office Switches and End Office Switches, may exchange calls between each other when a direct Trunk Group is unavailable. The term “Tandem Office” and “Tandem” are used to refer to the building in which the Tandem Office Switch resides, but are also used interchangeably to refer to the switch within the building.
Tandem Office Switch or “Tandem Office” or “Tandem” is a switching entity that has billing and recording capabilities and is used to connect and switch trunk circuits between and among End Office Switches and between and among End Office Switches and carriers’ aggregation points, points of termination, or points of presence, and to provide Switched Exchange Access Services. A Central Office Switch may also be employed as a combination End Office/Tandem Office Switch.
Tandem Office Switch or “Tandem” means a Switch used to connect and switch Trunk circuits between and among other Central Office Switches. A Tandem Switch does not include a PBX. “Technically Feasible”, including burden of proof, is as defined in applicable FCC regulations and Applicable Law.
Tandem Office Switch means a Class 4 switch that is used to connect and switch trunk circuits between and among end office switches and other tandems.
Tandem Office Switch or “Tandem(s)” is a switching machine that meets the following criteria, and does not include a PBX. As ordered by the California PUC in Docket 00-00-000, Tandem Switches are used to connect and switch trunk circuits between and among other Central Office Switches. As ordered by the Illinois Commerce Commission in Docket 00-0332, a Level 3 switch in Illinois will be classified as a Tandem Switch when and to the extent that it meets the requirements of 47 C.F.R. section 51.711(a)(3) applied consistently with paragraph 1090 of the FCC’s First Report and Order (FCC 96-325) in CC Docket No. 96-98. As ordered by the Texas Public utility Commission in Docket 21982, a Level 3 switch in Texas will be classified as a Tandem Switch when Level 3 demonstrates actual tandem or tandem- like functionality in the delivery of this “excess” traffic (in excess of a 3:1 terminating to originating ratio) using various network design factors that demonstrate the existence of a network serving an area comparable to the ILEC’s geographic area with tandem or tandem-like functions, a network designed to both send and receive customer traffic for the purpose of serving a dispersed customer base. Merely evidencing a capability to serve a comparable geographic area will not rebut the presumption. The network design factors upon which a carrier may make its case include, but are not limited to: 1. the number and capacity of central office switches; 2. the number of points of interconnection offered to other local exchange carriers; 3. the number of collocation cages; 4. the presence of SONET rings and other types of transport facilities; 5. the presence of local distribution facilities such as coaxial cable and/or unbundled loops; or 6. any other indicia reliably demonstrating that the carrier is transporting a significant volume of traffic to a geographically dispersed area. In AM-MI territory, a Level 3 Switch will be classified as a Tandem Switch for the purposes of the application of reciprocal compensation charges for transport and termination of local traffic under Appendix Reciprocal Compensation of this Agreement, when and to the extent that it meets the requirements of applicable federal and state law.