David Cook wrote:
Thanks for the kind words. If you re-invite to create a direct path
between the two SIP endpoints then Asterisk is no longer acting as a PBX
because it is no longer "in the middle". The value of a PBX is precisely
when it remains in the middle by offering services like call recording,
call transfer/bridge, etc. that can only be accomplished when the switch
is "listening".
If you keep "listening" in a hosted model, then the hosting provider
requires a lot of bandwidth. So lets put the switch at your end where
you have 100MB wire speed in your premise and no need to actually talk
to my remote host. Anything you need to talk to my host about can be
accomplished via signalling between the switches which is much less
bandwidth intensive.
If you have an IAX provider that offers IAX trunking you will get a lot
more calls per mbit as a result because you are saving IP overhead on
multiple calls to the same destination host.
For the more paranoid, calls between office extensions never go out into
the wild (and can be intercepted by anyone with ethereal and time on
their hands to reconstruct the streams).
--
Best regards,
Duane
http://www.cacert.org - Free Security Certificates
http://www.nodedb.com - Think globally, network locally
http://www.sydneywireless.com - Telecommunications Freedom
http://e164.org - Because e164.arpa is a tax on VoIP
"In the long run the pessimist may be proved right,
but the optimist has a better time on the trip."