[Asterisk-Users] Can asterisk do this?

[John Skinger]

Here's what I want to make it do,
have 2 servers acting as call agents handling inbound and outbound calls to
a seperate pstn gateway(actually 2 of them but that is a seperate issue),
and 2 servers acting as sip proxies for ata186's spread throughout several
offices all remote. The call volume will be high and I have seen in the
lists that coordinated restarts are possible but no documentation on this
exists. also the ata's could connect to either of the sip proxies ( possibly
more sip proxies in the future)

Has anyone else tried this type of setup?
Has anyone tested asterisk with high call volume?
Does anyone know how to make asterisk re-read configuration files without
restarting?
Has anyone worked with clustering these servers?

I would appreciate any feedback on this.
Thanks
John