How many simultaneous calls can be made on a CUCM 6.1.4

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Mar 29th, 2010
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We have a cluster of five UCM's on a 7835H2 platform. What is the limit of simultaneous calls that the UCM can proccess before it starts to throttle?


Thanks,

Albert

Correct Answer by Adam Thompson about 7 years 2 months ago

Albert,


According to the data sheet for CUCM 6.x:

Maximum of 100,000 busy-hour call completions (BHCCs) per Cisco Unified Communications Manager server and 250,000 per server cluster (configuration dependent)


A good thing to use would be the Cisco Unified Communications Sizing Tool. It is available at http://tools.cisco.com/cucst


Thanks,

Adam


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Correct Answer
Adam Thompson Mon, 03/29/2010 - 13:26
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Albert,


According to the data sheet for CUCM 6.x:

Maximum of 100,000 busy-hour call completions (BHCCs) per Cisco Unified Communications Manager server and 250,000 per server cluster (configuration dependent)


A good thing to use would be the Cisco Unified Communications Sizing Tool. It is available at http://tools.cisco.com/cucst


Thanks,

Adam


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albert.castaneda Mon, 03/29/2010 - 17:19
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Hi Adam,


I saw the same numbers in cisco documentation. I wanted to confirm this. I was not able to access the sizing tool you suggested.


Thanks,

Albert

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