Cisco Cisco Unified IP Interactive Voice Response (IVR) 8.0(1) Release Note

Cisco recommends that you count outbound agents as inbound agents when performing sizing in CMCT. 

 

 
For deployments with more than 150 agent phones on MCS 7835 or MCS 7845, Cisco recommends that 
you deploy a minimum of two subscriber servers and a combined TFTP publisher. This agent phone limit 
is server platform dependent. 

 shows the maximum number of agent and non-agent phones 

supported on different server platforms for a 2-server Cisco Unified CM cluster with the publisher as the 
backup subscriber.

The Configuration and Ordering Tool for Cisco Unified CCX and Cisco Unified IP IVR 7.0 is available 
online at:

Only the 7.0 version of the Cisco Unified CCX Configuration and Ordering Tool is valid for Cisco 
Unified CCX 7.0 configurations. 

The tools are available online for partner access to account for the capacity required in Cisco Unified 
CM servers to handle CTI and call processing for Cisco Unified CCX.

Cisco Unified Communications Sizing Tool is available online at:

 

Cisco Unified CM Capacity Tool is available online at:

 

System performance criteria fall into two general categories:

Cisco Unified CCX and Cisco Unified IP IVR components - Applications, SW versions, 
capabilities, server types, and options and quantities that your system requires.

System usage - The average number of calls placed and received per hour, the average call length, 
the scripts being executed, grammar used for ASR, and so forth.

Each performance criterion can have an effect on the performance of the Cisco Unified CCX or Cisco 
Unified IP IVR system. In general, the more Cisco Unified CCX or Cisco Unified IP IVR components 
that you install and the heavier the system usage, the higher the demand on the server. However, the 
performance criteria can also interact in various non-linear ways to affect performance. The 

MCS 7816

50

10

30

MCS 7825

100

20

30

MCS 7835 or MCS 7845

150

30

30