[cisco-voip] Upgrade of CUCM with UCCX HA enabled

[Justin Steinberg]

You drop calls in queue and on the IVR when you restart the engine.  It
takes about a minute usually on restart and calls can get busy signals
during that time.

In some cases, I create backup UCM hunt groups and route the calls around
CCX entirely.  They lose reporting and IVR but calls get to agents.

Justin
On Oct 1, 2015 3:06 AM, "Nathan Reeves" <nathan.a.reeves at gmail.com> wrote:

> Currently running UCCX 9.0.1 with Warm Standby HA enabled.  Scheduling an
> upgrade in the CUCM version from 9.1.2SU1 to 9.1.2SU4 and trying to
> determine if we can minimise downtime on the UCCX component.
>
> When the switch version is completed you understanably end up with JTAPI
> versions out of sync which requires a resync and engine restart.
>
> Anyone know the best / suggested approach to completing an upgrade like
> this and minimising downtime on the UCCX Services?  Is it just a
> requirement that there's an outage window?
>
> Thanks
>
> Nathan
>
>
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