由于南非零售电话费率高，对Dabba来说话费售价低于其他运营商并仍保持利润是易于做到的。
Because South Africa's retail phone rates are high, it is easy for Dabba to underbid other operators and still make a profit.
在将拨打国外网络的电话费率降低逾60%之后，东非共同体成员国之间的漫游量立即达到惊人的数字。
After reducing the tariffs for calling other national networks by more than 60 per cent, roaming traffic among the eac member countries immediately reached staggering Numbers.
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