Orange: is a French multinational telecommunications corporation. It currently employs about 170,000 people, 105,000 of them in France, and has 263 million customers worldwide. In 2012, the group had revenue of €43.5 billion. Its head office is in the 15th arrondissement of Paris, and the current CEO is Stéphane Richard. The company is a component of the Euro Stoxx 50 stock market index.Orange has been the company’s main brand for mobile, landline, internet and IPTV services since 2006. The brand originated in 1994 when Hutchison Whampoa acquired a controlling stake in Microtel Communications during the early 1990s and rebranded it as Orange. It became a subsidiary of Mannesmann in 1999 and was acquired by France Télécom in 2000. The company was rebranded as Orange in July 2013. GSM-900 MHz (GPRS, EDGE)2100 MHz UMTS, HSPA+.
Sotelma: Sotelma is a private telecommunications company in Mali. The company is based in Bamako. Sotelma provides local telephony, international telephony, internet service and mobile telephone service, etc. Its mobile service subsidiary is Malitel. It is also the official registry of the country code domain.The full name of the company in the French language is “Société des télécommunications au Mali”.In 2008, it was announced the government of Mali would privatise Sotelma to an as yet unnamed private party. The company will be divided with 51% going to a single private investor, 20% retained by the government, 10% going to employees, and 19% sold by public offer. Privatization was finalized in 2010.In 2009, 51% shares of Sotelma were acquired by Maroc Telecom, a subsidiary of Vivendi.As of 2002, Sotelma had a total worth of 43,817 billion CFA francs, over 1300 staff, operated 1100 km of fibre optic transmission line, 9 DOMSAT relay stations, 19 VSAT stations, 110000 telephone subscriber lines and 5241 public phones.GSM-900 MHz (GPRS, EDGE)2100 MHz UMTS, HSDPA.