UCCX8 over Wan

[clougher01]

Hi there,

Got some questions regards UCCX ver 8.x deployment.

I have a customer with their Main site in one country and a remote site in another. They are connected with an MPLS link.

Main site has CUCM6, UCCX7 and 14 UCCX agents.

Remote site has 14 UCCX Agents connected via MPLS wan.

UCCX8 HA and CUCM8 has now increased its Round trip delay to 80ms.

So if we upgrade CUCM and UCCX can i do the following?

Is it possible to deploy another UCCX server and Subscriber at the remote site and point the agents at the local UCCX server?

Can this be done using HA or can i just add a second server to the UCCX cluster and use that for local access?

Does HA mode mean that the UCCX Sub server wont be used unless the UCCX Pub falls over?

Does it matter that i have less than 2meg on the MPLS Wan.

Any help much appreciated..

Thanks..

T.

[Christos Georgiadis · Accepted solution]

Hi,

I think the SRND for UCCX will answer all your questions.

http://www.cisco.com/en/US/docs/voice_ip_comm/cust_contact/contact_center/crs/express_8_0/design/guide/uccx80srnd.pdf

Roughly speaking:

-- Yes you can have two UCCX nodes separated by WAN as long as the allowed round-trip time between the servers is 80 ms or less

Instead of pinging from the server itself you better use the switch closesest to uccx (check the SRND)

-- It is recommended by Cisco to have at least one cucm node across the WAN as well

-- Agents can be located in any site

--  For HA over the WAN heartbeats are send every second and failover is initiated if we miss 10 consecutive heartbeats (10 secs)

-- I think you will have problems if you use a link less than 2 Mbps. Need to use higher

You roughly need 1.2 Mbps for the communication between the UCCX servers over the WAN and 800 kbps for the communication between the UCCX and the CUCM over the WAN

For additional information check chapter 4 of the above guide.

Hope it helps,

Christos