To select an audio codec for a call, Unified CM takes the codecs matching on both sides of the call leg, filters out those exceeding the configured maximum audio bit rate for the region pair, and picks the preferred codec from what remains.
Checked 2026-09-30
- Vendor
- Cisco
- Product
- Unified Communications Manager
- Subsystem
- regions
- Deployment
- on-premises
- Region
- not restricted
- Release range
- Release 15 and SUs as of 2026-09-30
- Checked
- 2026-09-30
Sources
- System Configuration Guide for Cisco Unified Communications Manager, Release 15 and SUs - Configure Core Settings for Device Pools — Cisco Systems · tier 2 current vendor documentation · section 'Regions Overview'
Cite this note
APA
WarmTransfer. (2026, September 30). Troubleshooting Unified CM media resource allocation failures: source note cucm-media-resource-failures-region-codec-selection. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-media-resource-failures-region-codec-selection
BibTeX
@misc{warmtransfer-claim-cucm-media-resource-failures-region-codec-selection,
title = {Troubleshooting Unified CM media resource allocation failures: source note cucm-media-resource-failures-region-codec-selection},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-media-resource-failures-region-codec-selection},
note = {Source note cucm-media-resource-failures-region-codec-selection, checked 2026-09-30}
}