We have CiscoCallmanager Publisher/Subscriber and UCCX Server in one site (A). The other sites (B,C) they all use the contact center services from site A. If something happened to site A, we want site B and C can still work. Right now, we only have some integrated service router which is capable of doing callmanager fallback in site B and C. But for contact center, I believe the router can't do the failover. So how can I realized the contact center service failover? Buy and install another UCCX server in site B and C?
I'm new to VoIP stuff. Please help. Thanks a lot.
I typically use CME in SRST mode with an ephone-hunt group. The agent ICD lines need to be preconfigured as ephone-dn for you to add them to the hunt group. You can add the B-ACD TCL application in front of the hunt group if you want to play a prompt and get some basic call queueing abilities. Ultimately, this is a very very basic functionality set when compared to CCX. The only licenses needed for this are the SRST entitlement licenses for the ISR.
It is worth noting that CCX 8.0 does add HAoWAN support very similarly to UCM. If you had a DR site with a UCM cluster node and a second CCX node, sites B and C could fall back to the DR nodes and retain full functionality instead of relying on SRST.