Gabon’s Regulatory Agency for Electronic Communications and Posts (ARCEP) has reportedly levied sanctions on the country’s largest mobile operator by subscribers, Indian-backed Airtel, for underreporting its volume of international network traffic in a statement of June 2012. An audit carried out by ARCEP on Airtel’s premises in August-September 2012 found that the operator had failed to disclose ‘more than three-quarters’ of traffic, according to a report by Agence Ecofin. The level of fine to be issued has not yet been revealed. Furthermore, ARCEP also found that the on-net retail call rates charged by Airtel transgressed the regulated range set by the watchdog. TeleGeography notes that in a decision effective 1 January 2012, ARCEP began regulating the retail on-net call rates of Airtel, under its designation of significant market power (SMP), determining that the SMP operator’s on-net rates (including promotional offers) cannot be less than twice its wholesale mobile voice call termination rate (MTR). ARCEP also introduced asymmetry in MTRs from 1 January 2012, in favour of Airtel’s rivals Gabon Telecom (Libertis), Moov and Azur.