[Asterisk-Users] Bandwidth via my Asterisk PBX

[Luki]

> Am I correct in assuming that all calls from each organization would
> route through our Asterisk server & be passed off to the service provider

That depends on your setup, on the provider and on the organization.
If all support ReInvites and have them enabled, then it will work and
the RTP traffic will flow between the organization and the provider.
But each organization needs to be reachable via a public IP (i.e. not
NAT) and the provider you use must support it too. I believe most(?)
do, but you should check.

--Luki