[cisco-voip] Unity Failover across WAN

[Jonathan Charles]

We do a Unity failover over a WAN with a 50MB link and it works
fine... however, both sides are in the same VLAN...


Jonathan

On Feb 5, 2008 2:34 PM, Adam Blomfield <adman at adman.net> wrote:
> I have a customer that is implementing a DR site across a 20mb/s MPLS
> network and we are trying to work out what voice services we can make
> redundant. I know that we can cluster CUCM server across a WAN link of that
> size, but according to the Unity Design Guides we shouldn't even consider
> trying to attempt Unity Failover without 100 or 1000mb/s. Is this accurate?
> Those requirements seem huge! Is there any way to try and provide a
> redundant Unity box across a network connection like this? We are
> considering just having a standalone Unity box over there that can split the
> mailbox load with the existing server, as well as having the Call Handlers
> set up on both of them so in the event of a failure the VM profile can be
> changed on the CTI ports to fail a main number over to the second server to
> allow calls to still roll in to the Call Handler. Does this make sense, or
> is there a better way to do this?
>
> -Adam
>
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