Telefóncia del Sur, the leading telecommunications company in the south of Chile, pertenece al Grupo GTDWith more than 308,000 clients, it covers both residential and business clients in the 8th, 9th, 10th,11th and 14th regions of the country, including the cities of Concepción, Temuco, Valdivia, Osorno, Puerto Montt and Coyhaique. Over the past several years, Telefónica del Sur has been undergoing an important transition from a traditional fixed telephony provider to a multi-product telecommunications operator offering wireless local telephony, Internet (ISP), WiTV (IPTV), security services (tele-vigilance) and specialized telecom services for businesses.