b) Access to Towers and Masts: A service where an Access Seeker is allowed to use a tower or mast that belongs, or is controlled by, an Access Provider, for the purpose of installing an Access Seeker’s transmission equipment and cables. Such service may also include access to associated infrastructure such as buildings, sites, power, or air conditioning. c) Dark Fiber: An Access Provider leases a single fiber or a number of fiber pairs, to an Access Seeker. However, the Access Provider does not have its transmission equipment connected to the leased fiber. Such service may also include access to associated infrastructure such as manholes and handholes, buildings, sites, power, or air conditioning. d) Access to Interconnection Points: This refers to access to facilities, sites, or buildings, where two or more Telecommunications Operators interconnect. Such service may also include access to associated services such as collocation, access to cross connectors, power, and air conditioning ACTIVE INFRASTRUCTURE 3) Active Infrastructure Services: Includes various types of services that require access to the elements or components on the active layer of a Telecommunications Network. The following examples are provided as an illustration. a) Wholesale Leased Capacity Service: Consist of a point-to-point transmission service with a pre-established transmission capacity with managed network transmission service. Such service may include Long Distance Leased Circuit and IP Transit Services b) Sharing Radio Access Network (RAN): Sharing may take various forms; for example, a single RAN may serve two or more core networks belonging to different operators. Other forms may involve sharing all elements of the RAN. c) Wholesale national roaming service: Is a service where the Access Seeker’s mobile subscribers may be hosted using the network of a second mobile operator (i.e., the “Access Provider”), allowing a subscriber of the Access Seeker to have mobile service in areas outside the Access Seeker’s network coverage area. d) Backhaul Transmission Sharing: A service where the infrastructure sharing provider and the infrastructure sharing seeker share a common link to connect with their radio and core network nodes. 17