In theory, we could actually completely dump telkom, BUT that would mean that cellular providers will have to replace telkom and as such at least be priced equal or lower than telkom.
My simplistic view is:
1. that you do not need a copper cable or trunking.
2. The virtual "cable" cannot be stolen
3. and less points of failure or as such sites to protect.
4. You can have your "line" with a simple sim activation,
5. you can use pre-paid to limit bad debt write-offs -
BASICALLY you could wonder why we even need a fixed line at all? It kind of sounds like ancient tech really - if hardwire was that good, then why even bother with creating wireless tech?
Now thats the dream, which the cellular providers CAN achieve if it wasn't for greedy shareholders!