Hellenic Telecommunications Organization is a full-service telecommunications group. Co. provides local, long-distance and international fixed-line telecommunications services in Greece and Romania, and mobile telephony services through its Cosmote subsidiary in Greece, as well as in Albania, Bulgaria, the Former Yugoslav Republic of Macedonia and Romania. Co. also provides internet access services and Internet Protocol (IP) -based telecommunications applications, as well as information technology application development and hosting services using IP technologies. Also, Co. provides several other telecommunications services, including value-added services and public telephone services.

Telecom Italia is a telecommunications group based in Italy. Co. is engaged in the communications sector and, particularly, the fixed and mobile national and international telecommunications sector, the television sector and the office products sector. Co. operates mainly in Europe, South America and the Mediterranean Basin. Co.'s operations are organized along two operating segments: Domestic - Italy (providing telephone and data services on fixed-line and mobile networks for final customers (retail) and other operators (wholesale)); and Brazil (operates in the mobile phone, fixed telephony, in long-distance and data transmission markets in Brazil).