Cisco Cisco IPCC Web Option Design Guide

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Cisco Unified Contact Center Enterprise 7.0, 7.1, and 7.2 SRND
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Chapter 2      Deployment Models
IPT: Multi-Site with Centralized Call Processing
For more information about Unified CVP, refer to the Cisco Unified Customer Voice Portal Solution 
Reference Network Design (SRND)
, available at 
Unified CCE: Transfers
In this deployment model (as well as in the multi-site centralized call processing model), both the 
transferring agent and target agent are on the same peripheral. This also implies that both the routing 
client and the peripheral target are the same peripheral. The transferring agent generates a transfer to a 
particular dialed number configured as a CTI Route Point in Unified CM (for example, looking for any 
specialist in the specialist skill group).
The Agent peripheral (either the Unified CCE System peripheral or the Enterprise Unified CCE 
peripheral) will generate a route request to the Unified ICM router. The Unified ICM router will match 
the dialed number to a call type and activate the appropriate routing script. The routing script looks for 
an available specialist.
If a target agent (specialist) is available to receive the transferred call, then the Unified ICM router will 
return the appropriate label to the requesting routing client (the Agent peripheral). In this scenario, the 
label is typically just the extension of the phone where the target agent is currently logged in. Upon 
receiving the route response (label), the Unified CM PIM will then initiate the transfer by sending a 
JTAPI transfer request to the Unified CM.
At the same time that the label is returned to the routing client, pre-call data (which includes any call 
data that has been collected for this call) is delivered to the peripheral target. In this scenario, the routing 
client and peripheral target are the same Agent peripheral. This is because the transferring agent and the 
target agent are both associated with the same peripheral. In some of the more complex scenarios to be 
discussed in later sections, sometimes the routing client and peripheral target are not the same.
If a target agent is not available to receive the transferred call, then the Unified ICM routing script is 
typically configured to transfer the call to an IVR so that queue treatment can be provided. In this 
scenario the logic in the Unified CCE System PG differs from the logic in the Unified CCE PG.
In both cases the label is a dialed number that will instruct the Unified CM to transfer the call to an IVR. 
In the case of the Unified CCE System PG, the peripheral target and routing client are both the Unified 
CCE System peripheral. Translation routing is done without having to configure the translation routes 
explicitly in the Unified ICM.
In the case of the Unified CCE peripheral, the routing client and peripheral target are different. The 
routing client is the Unified CCE peripheral, while the peripheral target is the specific IVR PIM to which 
the call is being transferred. Translation routes must be configured explicitly.
IPT: Multi-Site with Centralized Call Processing
A multi-site deployment with centralized call processing refers to any scenario where call processing 
servers (Unified CM, Unified ICM, and Unified IP IVR or Unified CVP) are located at the same site, 
while any combination of voice gateways, agents, desktops, and phones are located remotely across a 
WAN link or centrally. 
 illustrates this type of deployment.
There are two variations of this IPT model:
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