Wholesale: Products & Services

Local Interconnection Service (LIS) - V28.0


Product Description


Local Interconnection Service (LIS) is a bundled trunk-side service providing switching and transport for the mutual exchange of traffic that originates and terminates within a Brightspeed™ Local Calling Area (LCA) or an Extended Area Service (EAS) boundary. Purchasing LIS is different from purchasing Unbundled Network Elements (UNEs), although the purchase of UNEs is also correctly described generically as interconnection. Intercarrier Compensation applies to LIS but not to UNEs. The terms and conditions for LIS can vary by individual Interconnection Agreement. The information in this document describes the terms and conditions of a typical Competitive Local Exchange Carrier's (CLEC's) agreement with Brightspeed.


You must obtain certification from the state Public Utilities Commission (PUC) to provide Exchange Service (EAS/Local) in any state in which you plan to purchase LIS. Before ordering LIS, you must also request from NeuStar, a division of Lockheed Martin, at least one Numbering Plan Area (NPA) Numeric Numbering Plan (NXX) in each Local Access and Transport Area (LATA) in which you are providing Exchange Service (EAS/Local).


Brightspeed provisions all components necessary for complete connectivity between your chosen Point of Interconnection (POI) and any Brightspeed Central Office (CO) switch. Some Interconnection Agreements call for a POI in each LCA. You must establish at least one POI in each LATA in which you wish to provide Exchange Service (EAS/Local). The POI is a physical demarcation between your network and Brightspeed's network. The POI marks where your network repair responsibility ends and Brightspeed's network repair responsibility begins. Your POI must be within Brightspeed.


The following subject areas provide an overview of LIS:

  • Methods of Interconnection

  • Trunking

  • Facility Levels

  • Signaling Requirements

  • Trunk Groups


Methods of Interconnection


Several options are available for interconnection of your network and Brightspeed's network:


  • Collocation
    Brightspeed offers many options. The two most common options are Physical and Virtual Collocation. With Physical Collocation, you can extend your facilities into the Brightspeed Serving Wire Center (SWC) and have a POI within the Brightspeed SWC building. With Virtual Collocation, you extend your facilities to a point just outside the Brightspeed SWC and Brightspeed provides facilities to meet you at that location. In either instance, the collocation at the Brightspeed SWC becomes your POI.


  • LIS Entrance Facility (EF)
    With the LIS EF option, Brightspeed provides the transport between your physical location and the Brightspeed SWC. The Brightspeed SWC is the Brightspeed Wire Center (WC) nearest to your chosen POI. The POI is your physical location (e.g., the location to which Brightspeed builds the EF). An EF does not extend beyond the Brightspeed SWC boundary. EFs may not be used for interconnection with UNEs. EF may be requested in Digital Signal Level 1 (DS1) or Digital Signal Level 3 (DS3) format.


  • LIS Mid Span Fiber Meet (MSFM) within Brightspeed
    A LIS Mid-Span Fiber Meet is a negotiated Point of Interface, limited to the Interconnection of facilities between the Brightspeed Serving Wire Center location and the location of your switch or other equipment located within the area served by the Brightspeed Serving Wire Center. The actual physical Point of Interface and fiber facilities used will be subject to negotiations between the Parties. Each Party will be responsible for its portion of the build and its portion of the costs to the Mid-Span Fiber Meet. You may not use remaining capability in an existing Mid-Span Fiber Meet to gain access to Unbundled Network Elements. These Mid-Span Fiber Meets will consist of fiber facilities used for the exchange of traffic and joint provisioning of Telecommunications Services to End User Customers and other Telecommunications Carriers.


  • Other Technically Feasible Methods
    While the 3 methods above are the most common, other technically feasible methods of interconnection can be requested via a Bona Fide Request (BFR).


Contact us for Bona Fide Request (BFR) information.




LIS is available throughout Brightspeed territories.


To get started, please contact carrieragreements@brightspeed.com.