Telecom Argentina SA, (Telecom), is an Argentina-based company primarily engaged in the provision of national fixed-line telecommunication services, international long-distance service, data transmission and Internet services, as well as mobile telephony. The Company also offers such solutions as online business and Web hosting, virtual private network (VPN), mobile operating systems developed by Microsoft and Blackberry, toll-free telephone numbers, call centers and voice over Internet protocol (VoIP) line, as well as other services mainly aimed at corporate clients. As of December 31, 2012, the Company owned its subsidiaries structured in two business segments, Fixed Telephony, which comprised Telecom Argentina USA Inc and Micro Sistemas SA; and Mobile Services, with Telecom Personal SA, Nucleo SA and Springville SA.