According to the Cisco Unified Contact Center Express Design Guide, Release 8.0(1), the maximum number of agent web chat sessions that is supported on the highest class server is 50. This means that a single agent can handle up to 50 concurrent web chat sessions on a server that meets the highest hardware specifications for Cisco Unified CCX 8.0. The highest class server for Cisco Unified CCX 8.0 is the MCS 7845, which has the following hardware configuration:
Processor: Two quad-core Intel Xeon E5440 2.83-GHz processors
Memory: 12 GB RAM
Hard disk: Four 146-GB SAS hard disks
The maximum number of agent web chat sessions depends on the hardware configuration, the deployment model, and the features enabled. For example, if Cisco Unified CCX is deployed in a high availability mode, the maximum number of agent web chat sessions is reduced to 25. If Cisco Unified CCX is deployed with Cisco Unified Presence, the maximum number of agent web chat sessions is reduced to 20. If Cisco Unified CCX is deployed with Cisco Unified Intelligence Center, the maximum number of agent web chat sessions is reduced to 10. The maximum number of agent web chat sessions also varies for different versions of Cisco Unified CCX. For example, Cisco Unified CCX 7.0 can support a maximum of 25 agent web chat sessions, while Cisco Unified CCX 9.0 can support a maximum of 60 agent web chat sessions. References: Cisco Unified Contact Center Express Design Guide, Release 8.0(1), Chapter 3: Unified CCX Architecture and Capacity Planning, Section 3.2.3: Agent Web Chat, Page 331 Cisco Unified Contact Center Express Design Guide, Release 8.0(1), Chapter 3: Unified CCX Architecture and Capacity Planning, Section 3.3: Unified CCX Hardware Configuration, Page 372
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