Cisco Cisco Unified Customer Voice Portal 10.5(1)

Gateway

Register your gateways with the VIP of the HSRP failover pair.

Define a dial-peer of the highest preference (preference 0) that performs a gatekeeper search
for an available Unified CVP H.323 Service (that is, “session target ras”).

Set the tech-prefix to the tech prefix of your Unified CVP H.323 Service.

Define at least one other dial-peer with lower preference (preference 1) that uses a static Unified
CVP H.323 Service address instead of a gatekeeper lookup (for example, session target
ipv4:10.86.137.68).

Unified CM

Under Device > Gatekeeper, set the gatekeeper name to the HSRP VIP of the gatekeeper
failover pair.

Set “Registration Request Time to Live” to 30 seconds. Set “Registration Retry Timeout” to
30 seconds.

Unified ICME

Enable the router requery on all “Queue to Skill Group” nodes.

Coming off the X path from the Queue to Skill Group node, add an “IF” node that checks the
value of the variable Call.RequeryStatus. If the value is 1, play a 60 second prompt and go to
a second “Queue to Skill Group” node. If the value is not “1”, immediately go to the second
“Queue to Skill Group Node”.

Alternate Gatekeeper Support

The Unified CVP H.323 Service can use an alternate gatekeeper in the event that the primary
configured gatekeeper fails. Most customers want redundant gatekeepers, so Unified CVP has
always supported paired gatekeepers in a Hot Standby Router Protocol (HSRP) configuration.
HSRP provides a single (virtual) IP address behind which two gatekeepers can operate. However,
HSRP is a relatively old protocol which has a number of shortcomings, most notably that the
two gatekeepers in a pair must be co-located at the same site. This confounds customers' attempts
to provide geographic redundancy, and requires such customers to purchase twice as many
gatekeepers as they would otherwise need.

Configuration and Administration Guide for Cisco Unified Customer Voice Portal Release 4.1(1)