In September 2006 Celtel launched "One Network", the world's first borderless network across East Africa, this was possible due to the Gateway license for Data which Kenya Data Network had acquired. KDN provided Celtel with a cross border link to Uganda and with trunk capacity to Belgacom. With these links Celtel was no longer required to pass its traffic through the gateway of the monopoly in Kenya. One Network enabled its subscribers in Kenya, Uganda and Tanzania to roam free between these countries, thereby scrapping roaming charges, making calls at local rates, receiving incoming calls free of charge, and recharging with local top up cards.