It's worth noting the plan (at least in NSW, and I think QLD and ACT) for emergency services is to move the current 2-way radio network (GRN) to one that shares cellular infrastructure over the next few years. The GRN is currently built and maintained separately by the NSW Telco Authority and predominantly uses microwave to link towers. The current network has issues, but a separate infrastructure obviously leaves the opportunity to use the mobile network and vice versa if one is impacted by a disaster.
I don't really know much about the backhaul paths NBN uses between towns, but it wouldn't surprise me if there were many single points of failure in the NBN and cellphone backhaul network, such that an interruption takes out all comms downstream. This is unlikely in major centres, but lots of Australia is small towns or less. The mitigation appears to be satellite, but this typically requires transporting satellite gear into location. Regards, Michael Skeggs (pleased not to be in Telco anymore) _______________________________________________ Link mailing list [email protected] http://mailman.anu.edu.au/mailman/listinfo/link
