Now that i think about it actually a simple matter of routing ips and a dual database to record whats what.
if the isp's put in a little more effort they could actually do the splitting on their side instead of us going to great lengths to achieve this
to my knowledge (i stand to be corrected) that any account that has international and local cap combined has a method of limiting which traffic goes where so when u reach your int cap it moves over to local but on the local side they dont do anything but if they used a similar method of tracking like with the int, then local could also be deducted form your local cap and will leaving your int cap for international traffic. its just a second record to track the local traffic.
just a theory i have
if the isp's put in a little more effort they could actually do the splitting on their side instead of us going to great lengths to achieve this
to my knowledge (i stand to be corrected) that any account that has international and local cap combined has a method of limiting which traffic goes where so when u reach your int cap it moves over to local but on the local side they dont do anything but if they used a similar method of tracking like with the int, then local could also be deducted form your local cap and will leaving your int cap for international traffic. its just a second record to track the local traffic.
just a theory i have