Preview Tool

Cisco Bug: CSCtd94578 - Transfer usiing E2E RSVP (SIP Preconditions) may fail when glare occurs

Last Modified

Jun 22, 2010

Products (1)

  • Cisco Unified Communications Manager (CallManager)

Known Affected Releases


Description (partial)

Intermittent call failures are observed in E2E RSVP Transfer call scenarios involving SIP trunks for both blind and supervised transfers.
Blind Transfer Scenario
Phone A (CUCM Cluster1) makes an End to End RSVP ICT (SIP Trunk) call to Phone B (CUCM Cluster 2).
Phone A presses the transfer key and dials Phone C (CUCM Cluster1)
PHone A receives ringback and presses the transfer key to complete the transfer function.
Transfer completes and Phone A gets disconnected.
Due to this issue, Phone B is erroneously disconnected.
Phone C gets reorder tone.
Only occurs when End to End RSVP is enabled and UPDATE glare occurs between the clusters during a preconditions exchange over the SIP trunk.
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.