Preview Tool

Cisco Bug: CSCsy88996 - Disabling DNS and reverse DNS lookup on CUP for CVP integration

Last Modified

Mar 07, 2018

Products (1)

  • Cisco Unified Communications Manager IM & Presence Service

Known Affected Releases


Description (partial)


When there is a problem with DNS server or network issues delaying reverse DNS query from CUP, the call setup time will take longer as CUP is still waiting for the response from DNS server. This is still true for the customer not using IP addresses in the configuration.

CUP is integrated with CVP as SIP Proxy server.
Bug details contain sensitive information and therefore require a account to be viewed.

Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
  • Number of Related Support Cases
Bug information is viewable for customers and partners who have a service contract. Registered users can view up to 200 bugs per month without a service contract.