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Cisco Bug: CSCsy94092 - Ten hour+ Upgrade from 5.1.x to 6.1.x with approx. 18,000 EM devices

Last Modified

Feb 22, 2014

Products (1)

  • Cisco Unified Communications Manager (CallManager)

Known Affected Releases


Description (partial)


Upgrade from to takes 9h+


The number of EM devices exceeds the recommended limit for CUCM 5.1.x
(In this instance there are approximately 18,000 EM devices.
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Bug Details Include

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  • Status
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