Bob was responsible for the IT in his mining investment company. In their new offices not to far from the bustling hub of economic activity that is central Johannesburg, Bob installed a new fibre service, the likes of which had been popping up all over the city. He ordered 50 Mb/s which was an order of magnitude better than the previous connection they had of a 20 Mb/s ADSL that never delivered more than 10 Mb/s. Bob then went the full enchilada and ordered a cloud based Voice over IP (VoIP) service.
Read the article over at Medium: Providing crystal clear voice services over last mile links