Cisco lists a codec disagreement between regions, where the two call ends share no common codec and no transcoder is available, as a cause of reorder tone.
Checked 2026-09-30
- Vendor
- Cisco
- Product
- Cisco Unified Communications Manager
- Subsystem
- regions and media resources
- Deployment
- on-premises
- Region
- not restricted
- Release range
- 12.5(1) as documented
- Checked
- 2026-09-30
Sources
- Troubleshooting Guide for Cisco Unified Communications Manager Release 12.5(1) — Device Issues — Cisco Systems, Inc. (www.cisco.com) · tier 2 current vendor documentation · Device Issues > Codec and Region Mismatches
Cite this note
APA
WarmTransfer. (2026, September 30). Troubleshooting Unified CM call routing failures and reorder tone: source note cucm-call-routing-failures-reorder-codec-region. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-call-routing-failures-reorder-codec-region
BibTeX
@misc{warmtransfer-claim-cucm-call-routing-failures-reorder-codec-region,
title = {Troubleshooting Unified CM call routing failures and reorder tone: source note cucm-call-routing-failures-reorder-codec-region},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-call-routing-failures-reorder-codec-region},
note = {Source note cucm-call-routing-failures-reorder-codec-region, checked 2026-09-30}
}