Cisco Cisco Unified Contact Center Enterprise 10.0(1) Leaflet

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Cisco Unified Contact Center Enterprise 7.5 SRND
Chapter 7      Cisco Unified Expert Advisor Option
Sizing and Licensing
ready to take calls in all Unified ICM skill groups for which he is qualified. If the document indicates 
that the advisor is not available, then Unified Expert Advisor notifies Unified ICM that he is no longer 
ready to take calls on any Unified ICM skill groups.
Note
In the current release of Unified Expert Advisor, the idle state is not considered to be unavailable. Idle 
is the state to which the presence client transitions when there has been no activity on the computer for 
a configurable period of time.
Sizing and Licensing
The following guidelines apply when sizing various components in a Unified Expert Advisor 
deployment:
Unified Expert Advisor
Unified Expert Advisor is licensed according to the number of Cisco Unified Presence users that 
may be configured as expert advisors and the number of servers in the cluster. There is no separate 
limit to the number of expert advisors who may be logged in or actively connected to callers. 
Licenses are strictly enforced, but all license checking is performed at configuration time.
Currently each Unified Expert Advisor cluster supports up to 3000 expert advisors and up to 6000 
busy hour call attempts (BHCA) on Cisco MCS-7845 servers. See the chapter on 
, for complete details about supported Unified Expert 
Advisor capacities under various conditions.
Network Bandwidth
Outside of normal SIP and telephony network guidelines, the only significant bandwidth occupied 
by Unified Expert Advisor is in the link between each runtime server and the reporting server. 
Reporting event traffic for the number of calls and expert advisors indicated above is about 1.6 
megabits per second. No special QoS or latency minimums are required.
Cisco Unified Communications Manager (Unified CM)
Due to a Cisco IOS limitation, when you size Unified CM for Unified Expert Advisor deployments, 
it is important to take into account that an MTP resource is required for all calls on the SIP trunk 
that connects to Unified CVP or its SIP proxy server. (See 
.)
Cisco Unified Presence
Each Unified Expert Advisor runtime server logs one presence user (who must be fully licensed) 
into Cisco Unified Presence. During startup of either runtime server or of the presence server itself, 
and every 30 to 60 minutes thereafter, the system goes through the process of subscribing for 
presence notifications from each configured expert. This process can take several minutes to 
complete, during which time the presence server experiences a heavy load. However, the presence 
server works together with Unified Expert Advisor to inject delays as necessary so that the presence 
server does not become overloaded. Once the systems reach steady state, the presence server load 
is equal to the number of configured experts issuing typical presence updates to each of the two 
runtime server presence users.