Unitel (Angola)
[2] Unitel sells its services via a network of shops; recharging cards for pre-paid contracts are also sold by individual street sellers all over Angola.Unitel operates a network based on GSM and UMTS standards, and provides voice communications, text (SMS) and multimedia (MMS) messages, and mobile internet access.Since December 2011, Unitel covers all Angolan municipalities, by installing a transmitter in Rivungo, Kuando Kubango province; a station which is operated by solar power.The company was previously owned by Oi and Helios (through Africatel), Angolan state-owned oil company Sonangol and local firms like Geni holding (through Mercury), and Vidatel owned by Isabel dos Santos, each holding 25% of Unitel.In October 2022, Angolan President João Lourenço issued a decision finalising the nationalising of Unitel, ending the links of Isabel dos Santos, the daughter of Angolan longtime ex-president, with the operator.