DURBAN – SOUTH African operator MTN SA has over the past year seen an increase … call minutes while VoIP had continued to grow. “The increased usage of 3G and 4G devices may contribute to VoIP …
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DURBAN – SOUTH African operator MTN SA has over the past year seen an increase … call minutes while VoIP had continued to grow. “The increased usage of 3G and 4G devices may contribute to VoIP …
( read original story …)