Cisco IOS DSP farm services communicate with Unified CM using SCCP; other protocols are not supported.
Checked 2026-09-30
DSP farm services communicate with Cisco Unified Communications Manager using Skinny Client Control Protocol (SCCP); other protocols are not supported.
- Vendor
- Cisco
- Product
- Cisco IOS voice gateway DSP farm
- Subsystem
- media-resource-registration
- Deployment
- on-premises
- Region
- not restricted
- Release range
- Cisco IOS Release 15.1 guide; not confirmed for IOS XE
- Checked
- 2026-09-30
Sources
- Cisco Unified Communications Manager and Cisco IOS Interoperability Guide, Release 15.1 - Configuring Enhanced Conferencing and Transcoding for Voice Gateway Routers — Cisco Systems · tier 2 current vendor documentation · chapter 'Configuring Enhanced Conferencing and Transcoding for Voice Gateway Routers', prerequisites/restrictions
Cite this note
APA
WarmTransfer. (2026, September 30). Troubleshooting Unified CM media resource allocation failures: source note cucm-media-resource-failures-ios-dspfarm-sccp-only. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-media-resource-failures-ios-dspfarm-sccp-only
BibTeX
@misc{warmtransfer-claim-cucm-media-resource-failures-ios-dspfarm-sccp-only,
title = {Troubleshooting Unified CM media resource allocation failures: source note cucm-media-resource-failures-ios-dspfarm-sccp-only},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-media-resource-failures-ios-dspfarm-sccp-only},
note = {Source note cucm-media-resource-failures-ios-dspfarm-sccp-only, checked 2026-09-30}
}