Namibiaís largest cellco MTC said it has invested nearly NAD300 million (USD40 million) in its network infrastructure in the year to date, in projects including raising SMS capacity, the deployment of a transmission backbone across several areas of the country and the replacement of central switching equipment with next generation architecture. The companyís fibre-optic transmission network was extended in areas including the capital Windhoek, coastal regions and in the north, ending MTC's long-standing reliance on renting backbone capacity from Telecom Namibia. The fibre project was implemented by Nera and Ericsson at a cost of NAD76 million this year. MTC also upgraded its radio access network and wireless broadband service capabilities, in partnership with Nokia Siemens Network and Motorola, at a cost of NAD88 million. MTC's investments over the last 13 years total NAD1.6 billion.