@kilo39
Telkom do pay something for international bandwidth. They have to pay their connection fees to whoever they connect to in the USA, Spain and all other points where their international cables connect. The fees they pay, however, are wholesale and have not been reviewed by the public but I am sure that they are negligible compared to what Telkom retails bandwidth to us. How do I know; estimated R8 BILLION profit for year ending 31st March 2006. This is up from R6 billion of the last financial year. The growth was not of subscribers (smaller than 1% growth in their subscriber base) so they had to squeeze the existing ones.
@All
Now for those that do not understand the concept of bandwidth and how it differs from usage allotment.
Bandwidth is measured in bits per second. The bits that can be transmitted per second is your bandwidth. The average ADSL account in South Africa is 384Kbps which means the pipe can shift 384000 bits per second. (For those in the know, I have simplified the figure by dropping the extra 24 in the kilo and ignored overhead). For simplicity sake, assume a packet is 1000 bits. That means the pipe can transmit 384 packets per second. Imagine that a packet is a car, then the highway analogy is one with 384 lanes.
This ties in with Mando's explanation.
What Telkom are saying, with allotments, is that the total number of cars, irrespective of time, that can pass on that highway is limited, and that it is setup such that they are invoiced on the number of cars they allow on it. Thus, to remain profitable, they have to pass this cost to their customers while doing their best to keep the pricing as low as possible. Well, that is the image they want to push.
The truth is quite a bit different. International pipes are not charged according to number of cars, but number of lanes. Thus, with our 384 lane highway, Telkom get charged the same when no car uses it during the month, or 1 million cars use it during the month (assuming Telkom are charged on a monthly basis).
By selling you the bandwidth (line rental) and an allotment (ISP charge), you are paying twice for the same commodity and that is how Telkom can make such exorbitant profits.
The local bandwidth issue is even worse. Telkom are not charged for local bandwidth. Their costs are related to the network equipment that they own / hire. Basically, while not free, their local bandwidth all-in costs are negligible so they make huge profits off local connections.
BTW Byrd, we make assumptions because Telkom won't show us their books. Unless you have inside information about Telkom, your comments carry as much weight as opinion, which puts us all on even footing
Peace.