wondering if anyone knows of any reliable mirrors to download asterisk from
in Australia or somewhere close to it than having to download stuff all the
way from the US?
I haven’t checked that URL, but it should be correct. That, and that
mirror should be unmetered if you’re on a university network.
No worries. The other place to dig around would be the BSD mirrors,
since they too are source-based. This is probably one of the wider
benefits of source-based distributions, we often mirror the upstream
package unmodified where possible.