Bullitt: your response of not calling 087 numbers because of Vox's practices is disingenuous. If you feel that way about Vox, don't call 08780 numbers. Not calling the entire 087 range only serves to discourage competition, particularly some of the others who have termination tariffs as low at 7c!
In terms of what ICASA is doing, they are conducting a review of the numbering plan. Many (including myself) have made or contributed to submissions and taken the time to meet with ICASA to raise some of these issues. One of the things I stressed to them was that revenue share services are premium rate services and should be implemented on the premium rate services number range. Currently, that is 0862, 0865 through 0867.
In Vox's case, things are slightly more complicated as theirs is a two-way (inbound and outbound) service, not an inbound only. the 086 range is generally associated with inbound services of various natures (cost split, premium rate, etc).
The thing is that Vox are perfectly entitled to do what they're doing. The numbering plan regulations don't tie up to any markets and comeptition regulations and the Interconnection regulations have been in draft for years; even the draft doesn't address this.
What really perplexes me, however, is why you're so anti-Vox for applying high interconnect tariffs, yet you say nothing about the mobile operators whose termination tariffs are even higher and who don't even provide revenue share to their clients but rather keep it all for themselves posting billions of rands of profit. To add insult to injury, the original reasons they gave ICASA to jusitfy the massive interconnect rate are no longer valid. Most notably, the cell phone subscriber base in SA is tens of millions strong, not under 1 million as was the foundation of the argument.
I'm also perplexed at why you feel revenue-share services are a bad thing. Implemented in a transparent manner, they provide an ideal means of providing real value add services. E.g. Want to call for directions? Call a premium rate number and have a human give you direction. Want a guided walk-through tour of a city? Call a premium rate number and listen to a virtual tour-guide as you walk about. Want a once-off teleconference without having to hand over credit card details? Simply dial a premium rate number. Want computer support? Why not dial a premium rate number and get professional support.
I agree that it is really nasty for a business that is providing no intrinsic value to the call (or who is charging you via other means, e.g. bank charges) to participate in a premium-rate scheme. I don't like the idea of paying the bank a premium to call them. But I don't see why this is the network's fault. It's a dubious business practice on the bank's part. Insofar as the network purports to be providing a normal service, it is questionable, but it boils down to the issue that ICASA should allocate numbers from ranges according to the intended application and set clearer regulations so that consumers have clarity. ICASA realise this and are reviewing the plan. If you've made a submission, good for you. If not, accept the status quo. If you're serious, it's still early on in the process and you can probably make a submission to ICASA.