The Release 12.5(1) troubleshooting guide attributes an established call with no supplementary services on an H.323 device that does not support H.323v2 to a possible MTP resource problem, and directs verifying that MTP resources are registered and that Media Termination Point Required is checked in the gateway configuration.
Checked 2026-09-30
- Vendor
- Cisco
- Product
- Unified Communications Manager
- Subsystem
- media-termination-point
- Deployment
- on-premises
- Region
- not restricted
- Release range
- Release 12.5(1)
- Checked
- 2026-09-30
Sources
- Troubleshooting Guide for Cisco Unified Communications Manager, Release 12.5(1) - Cisco Unified Communications Manager Services Issues — Cisco Systems · tier 2 current vendor documentation · section 'No Supplementary Services Are Available on an Established Call'
Cite this note
APA
WarmTransfer. (2026, September 30). Troubleshooting Unified CM media resource allocation failures: source note cucm-media-resource-failures-no-supp-svc-mtp-h323. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-media-resource-failures-no-supp-svc-mtp-h323
BibTeX
@misc{warmtransfer-claim-cucm-media-resource-failures-no-supp-svc-mtp-h323,
title = {Troubleshooting Unified CM media resource allocation failures: source note cucm-media-resource-failures-no-supp-svc-mtp-h323},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-media-resource-failures-no-supp-svc-mtp-h323},
note = {Source note cucm-media-resource-failures-no-supp-svc-mtp-h323, checked 2026-09-30}
}