The RTMT CodeYellow alert indicates that Unified CM initiated call throttling due to unacceptably high delay in handling calls.
Checked 2026-10-02
This alarm indicates that Unified Communications Manager initiated call throttling due to unacceptably high delay in handling calls.
- Vendor
- Cisco
- Product
- Cisco Unified Communications Manager
- Subsystem
- RTMT alerts
- Deployment
- on-premises
- Region
- not restricted
- Release range
- 15 and SUs as of 2026-10-02
- Checked
- 2026-10-02
Sources
- Cisco Unified Real-Time Monitoring Tool Administration Guide, Release 15 and SUs - Alerts — Cisco Systems · tier 2 current vendor documentation · Alerts chapter > Automatic Trace Download Activation (alert list entry CodeYellow)
Cite this note
APA
WarmTransfer. (2026, October 2). Troubleshooting high CPU and service crashes in Unified CM: source note cucm-high-cpu-troubleshooting-codeyellow-alert-meaning. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-high-cpu-troubleshooting-codeyellow-alert-meaning
BibTeX
@misc{warmtransfer-claim-cucm-high-cpu-troubleshooting-codeyellow-alert-meaning,
title = {Troubleshooting high CPU and service crashes in Unified CM: source note cucm-high-cpu-troubleshooting-codeyellow-alert-meaning},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-high-cpu-troubleshooting-codeyellow-alert-meaning},
note = {Source note cucm-high-cpu-troubleshooting-codeyellow-alert-meaning, checked 2026-10-02}
}