[cisco-voip] Expressway HA Failover when ISP fails

[Brian Meade]

You'll probably want to make that into 2 SIP trunks so it can actually
failover to the other if it gets an error message back from the
Expressway-C.

On Tue, Sep 24, 2019 at 8:43 AM Nick via cisco-voip <
cisco-voip at puck.nether.net> wrote:

> Hi All
>
> We have a situation with a client where they have an Expressway cluster 2
> x ExpC and 2 x ExpE split across two datacentre, each datacentre has
> different ISP's. If they have a internet outage at one of the datacentres,
> 50% of the outbound video traffic is lost.
> The CUCM has one SIP trunk with the 2 ExpC IP's so is the Expressway not
> able to determine an ISP outage and if not how are 50% of the calls getting
> through, does the Expressway load balance between each node in the cluster
> and if so is there any way to change this to cater for an ISP outage?
>
>
>
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