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Cisco Bug: CSCuo65490 - CVP SRND needs to be updated for VXML gateway performance numbers.

Last Modified

Jan 02, 2017

Products (1)

  • Cisco Unified Customer Voice Portal

Known Affected Releases


Description (partial)


The above CVP guide has the below two sections:These performance numbers are accurate when used with either the Cisco Call Server or Cisco Unified CVP VXML Server. Performance can, and often does, vary with different applications. Performance from external VoiceXML applications (such as Nuance OSDMs) might not be representative of the performance when interoperating with non-Cisco applications. You must ensure that the CPU usage is less than 75% on average and that adequate memory is available on Cisco gateways at full load when running external VoiceXML applications. Users should contact the application provider of the desired VoiceXML application for performance and availability information. Be aware that external VoiceXML applications are not provided by Cisco, and Cisco makes no claims or warranties regarding the performance, stability, or feature capabilities of the application when interoperating in a Cisco environment.

Cisco does not specifically test or qualify mixes of traffic because there are infinite combinations. All
numbers should be seen as guidelines only and will vary from one implementation to the next based on configurations and traffic patterns. It is required that the systems be engineered for worst-case traffic (all ASR) if it is not known or cannot be predicted what kinds of calls will be offered to the VXML gateway.

If you run VoiceXML on one of the Cisco 2900 and 3900 Series gateways, additional licenses (FL-VXML-1 or FL-VXML-12) are required.
The above two paragraphs are mentioning about performance of VXML gateway when being used with External VoiceXML Application only whereas the same holds true in all scenarios and hence should be genric in nature and not only for External VoiceXml app.

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