Econet Wireless Zimbabwe, the country’s largest mobile operator, will launch comprehensive per-second billing for all national and international calls, for all its pre- and post-paid users next month, its CEO Douglas Mboweni has announced. The GSM provider, which currently offers per-second billing on certain services, said the move applies for corporate and residential subscribers, at peak or off-peak times, and on calls to any mobile or fixed network. ‘The cost of making calls will be cheaper, so traffic volumes will increase. We had to first clear issues of capacity before [fully implementing] per second billing,’ Mboweni said, explaining the fact that the firm had delayed the implementation after announcing the move around a year ago. Zimbabwe's three mobile operators – Econet, Telecel and NetOne – were given until September to implement per-second billing by the Postal and Telecommunications Regulatory Authority of Zimbabwe (POTRAZ); NetOne was reportedly the first network to charge customers per-second but to date has not announced a comprehensive service covering cross-network calls; Telecel is also yet to confirm it will comply with the new billing system. The three cellcos are also facing a 31 August deadline set by POTRAZ to register the details of all pre-paid mobile SIM card users.