BT Network means the communications network owned or leased by BT and used to provide a Service.
Distribution Network Operator or “DSO” shall mean the operator of a Distribution Network.
Network Customer means an entity receiving transmission service pursuant to the terms of the Transmission Provider’s Network Integration Transmission Service under Tariff, Part III.
Integrated Services Digital Network (ISDN) means a switched network service that provides end-to-end digital connectivity for the simultaneous transmission of voice and data. Basic Rate Interface-ISDN (BRI-ISDN) provides for a digital transmission of two (2) 64 Kbps bearer channels and one (1) 16 Kbps data channel (2B+D).
Mobile Network means the network facilities and/or network services comprising the public cellular network for the provision of Call Communications.