is it possible to bounce signalling from an overseas provider and keep media local?

i need to find reasonable rates for load testing to australian geo numbers - concurrent channels + rate per minute

not fussy about which country the calls originate.

i was thinking to work my way through this list of providers http://wiki.freeswitch.org/wiki/SIP_Provider_Examples to tally up costs

probably won't happen til july/august but just getting some notes down whilst it's raining and there's nothing for me to do except dev...

cheers

chris