In the Unified CM 8.x design guide, the codecs allowed for MoH streams are chosen in the Supported MoH Codecs clusterwide service parameter of the IP Voice Media Streaming application, and by default only G.711 mu-law is selected.
Checked 2026-09-30
By default, only G.711 mu-law is selected.
- Vendor
- Cisco
- Product
- Unified Communications Manager
- Subsystem
- music-on-hold
- Deployment
- on-premises
- Region
- not restricted
- Release range
- Unified CM 8.x only; Release 15 default not verified
- Checked
- 2026-09-30
Sources
- Cisco Unified Communications System 8.x SRND - Music on Hold — Cisco Systems · tier 2 current vendor documentation · chapter 'Music on Hold' (chapter 18), codec discussion; heading not returned
Cite this note
APA
WarmTransfer. (2026, September 30). Troubleshooting Unified CM media resource allocation failures: source note cucm-media-resource-failures-moh-codecs-default-8x. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-media-resource-failures-moh-codecs-default-8x
BibTeX
@misc{warmtransfer-claim-cucm-media-resource-failures-moh-codecs-default-8x,
title = {Troubleshooting Unified CM media resource allocation failures: source note cucm-media-resource-failures-moh-codecs-default-8x},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-media-resource-failures-moh-codecs-default-8x},
note = {Source note cucm-media-resource-failures-moh-codecs-default-8x, checked 2026-09-30}
}