System Error Messages for Cisco Unified Communications Manager 8.5(1)

Publisher

Cisco Systems

URL

https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/err_msgs/8_x/ccmalarms851.html

Published

unknown

Updated

unknown

Accessed

2026-10-02

HTTP status

200

License

Cisco copyrighted documentation; no-redistribution; short excerpts and locators only

Source notes citing this source

• The CallManagerFailure alarm reports an internal failure in the Cisco CallManager service with reason codes 1 Unknown, 2 HeartBeatStopped, 3 RouterThreadDied, 4 TimerThreadDied and 5 CriticalThreadDied; the service should restart to clear the failure. in context
• For CallManagerFailure, Cisco's recommended action is to collect the core file if available plus SDL and CCM/SDI traces from Trace and Log Central and contact Cisco TAC. in context

Cite this source record

APA

WarmTransfer. (2026, October 2). System Error Messages for Cisco Unified Communications Manager 8.5(1). WarmTransfer. https://warmtransfer.net/knowledge/sources/cisco-cucm-err-msgs-851-alarms

BibTeX

@misc{warmtransfer-cisco-cucm-err-msgs-851-alarms,
  title  = {System Error Messages for Cisco Unified Communications Manager 8.5(1)},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/sources/cisco-cucm-err-msgs-851-alarms},
  note   = {Cisco Systems, accessed 2026-10-02}
}