[cisco-voip] SCCP or SIP on Unity 5.0

[Pat Hayes]

However, as noted elsewhere in the thread, Unity failover is not
currently available with CUCM SIP integrations, you have to use
skinny:

http://www.cisco.com/en/US/docs/voice_ip_comm/unity/5x/integration/cucm_sip/guide/cuintcucmsip060.html#wp1040314


On Wed, Jun 3, 2009 at 2:43 PM, Ryan Ratliff <rratliff at cisco.com> wrote:
> Somewhat.  The trunks will not have DNs associated to them so it will be
> impossible for end users to call directly to the backup Unity server so that
> will help.  As long as you have separate route groups in the route list for
> the vm pilot then the only time the backup Unity server should receive a
> call is if the primary Unity either doesn't respond or rejects an incoming
> call.
>
> -Ryan
>
> On Jun 3, 2009, at 10:18 AM, Robert Kulagowski wrote:
>
> Ryan Ratliff wrote:
>>
>> I'll defer to Pat or somebody with more (recent) Unity experience but
>> Unity still sees all the ports as individual.  It's only the CUCM side where
>> you lose the tracking of individual ports.
>
> We've had instances where Unity has failed over because for whatever reason,
> a call was answered on the secondary Unity.  And that triggers the entire
> "Primary Unity must be dead" failover sequence.
>
> Does switching to a trunk versus individual ports mitigate that?
>
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