“local telephone call” means an effective or completed telephone call exchanged with a telecommunications station within the local charging area in which the calling telecommunications station is situated; “mobile radio-communication system” means a telecommunications system consisting of mobile service switching centres each of which typically serves a number of “cells'’ which establish calls to and from mobile subscribers in their respective call service areas, thereby allowing calls to be transferred from one cell to another cell without interruption and established or to be established by an operator under a licence to provide mobile radio-communications Services; “mobile radio-communication service” means a telecommunications service that operates through a mobile radio-communications system employing a network architecture in a "cell" configuration in which low-powered radio transmissions allow for the re-use of the same frequency simultaneously in multiple cells and shall include both voice telephony services and non-voice telephony services but shall unless otherwise expressly provided in a licence, exclude video, paging and high speed data services; “national long distance telephone call” means an effective or completed telephone call exchanged with a telecommunications station outside the local charging area in which the calling telecommunications station is situated; “national long distance call completion rate” means the percentage of national long distance telephone calls completed per total of national long distance call attempts measured during the peak traffic hour which originate and terminate within a licensee's network (internal national long distance call completion rate), or which terminate outside the licensee's network (external national long distance call completion rate); “non-service specific interfaces” means a shared boundary between two functional units that is not 9