Telco adds WiFi bundles for purchase to the mix.
Regulators urged to create equal playing field for all operators.
21 million new mobile subscriptions were added in the last quarter.
West African nation's integration with global economy turns up the heat for regulatory compliance.
- Published on 15 June 2015
One competitor details how the company, a late entrant to the market, has managed to keep up.
Mobile phone maker hopes to win over sceptics with latest offering.