For a UCCX trigger showing Call Control Group is Unknown, Cisco says to reselect the call control group and, if the problem persists, restart the CTI Manager service on Unified CM and the CCX Engine.
Checked 2026-10-02
- Vendor
- Cisco
- Product
- Unified Contact Center Express
- Subsystem
- CM Telephony subsystem
- Deployment
- on-premises
- Region
- not restricted
- Release range
- not stated; current as of 2026-10-02
- Checked
- 2026-10-02
Sources
- Troubleshoot CM Telephony Subsystem and Application Manager Service Partial Service Issue — Cisco Systems · tier 2 current vendor documentation · Troubleshoot CM Telephony Subsystem > Problem 1: Unknown Call Control Group
Cite this note
APA
WarmTransfer. (2026, October 2). Troubleshooting CTI applications that cannot control phones in Unified CM: source note cucm-cti-troubleshooting-uccx-unknown-ccg-restart. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-cti-troubleshooting-uccx-unknown-ccg-restart
BibTeX
@misc{warmtransfer-claim-cucm-cti-troubleshooting-uccx-unknown-ccg-restart,
title = {Troubleshooting CTI applications that cannot control phones in Unified CM: source note cucm-cti-troubleshooting-uccx-unknown-ccg-restart},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-cti-troubleshooting-uccx-unknown-ccg-restart},
note = {Source note cucm-cti-troubleshooting-uccx-unknown-ccg-restart, checked 2026-10-02}
}