[asterisk-users] Is this doable?

[Josh]

> I think you might want to split your questions first.
I thought that instead of creating a dozen different threads (and 
clogging the ML in the process) it would be better to put everything 
into one place - just pick the issue (or issues) you could address and 
leave (i.e. delete) the rest out.

> 1. You can't have multiple externip, but it's not necessary to run two 
> Asterisk instances, because you can set routes to different 
> destinations via particular interfaces.
I have no problems with the routing - that is already done. I am not 
certain how Asterisk handles a stream running across multiple interfaces 
and how the packet NAT is done. I am also aware that SIP packets "embed" 
the IP address in it so not sure how this is handled either.