It definitely sounds worth testing...  set it up and stop the media
services.

Mike

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Michael
Haag
Sent: Wednesday, May 21, 2008 3:29 PM
To: sipx-users@list.sipfoundry.org
Subject: [sipx-users] sipx redundancy tactics

New sipx admins who set up HA (High Availability) are often disappointed
when they realize that only the commserver
(proxy/registrar) provides redundancy.  The sipx roadmap calls for
creating redundancy of other components (voicemail,
auto-attendant, MWI, RLS/BLF, ACD, sipxconfig) but those improvements
are a ways off.  Regardless, even the commserver redundancy is
of little use if the 
primary target for inbound calls to sipx is an auto-attendant, which is
a common configuration (as opposed to
having DID to individual sipx users).  If the primary server is down
then so is the auto-attendant, which means inbound calls never
get delivered even though the distributed server is up.

Has anyone found a good way to deal with this limitation?  One thought
I've had is to configure sipx so that inbound calls go to a
dummy extension which does serial call forwarding, first to the
auto-attendant, and then directly to an operator's line or hunt
group.  For example:

  - gw sends inbound calls to x900 (which is NOT the alias of an AA)
  - x900 is configured with a serial User Call Forwarding list:
           1) x100 (AA)
           2) local operator's extension, or hunt group of appropriate
users


Will that work?  Does anyone have better/different ideas?

If we come up with a good way to deal with this issue then in it might
be worthwhile to find a way to express it in the sipxconfig
GUI, so it's clear to sipx admins without them having to ask the
questions I'm asking.

   Thx, -m

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