Source note · CUCM CDR and CMR field reference
The Cisco-specific cause code table lists SIP 503 service unavailable twice with two different codes whose Q.850 low words differ, 41 temporary failure and 63 service or option not available unspecified, so one SIP status maps to two Unified CM cause codes.
Checked 2026-09-15
2801795135 0xA700003F CCM_SIP_503_SERVICE_UNAVAILABLE_SER_OPTION_NOAV
- Vendor
- Cisco
- Product
- Cisco Unified Communications Manager
- Subsystem
- Call detail records
- Deployment
- on-premises
- Region
- not restricted
- Release range
- Release 12.5(1)
- Checked
- 2026-09-15
Sources
- Call Detail Records Administration Guide for Cisco Unified Communications Manager Release 12.5(1), complete book, Internet Archive capture of 2025-03-23 — Cisco Systems, Inc., served by the Internet Archive · tier 2 current vendor documentation · Call Detail Records chapter, Table 13, the two service unavailable rows
Cite this note
APA
WarmTransfer. (2026, September 15). CUCM CDR and CMR field reference: source note cucmcdr-service-unavailable-is-listed-twice. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucmcdr-service-unavailable-is-listed-twice
BibTeX
@misc{warmtransfer-claim-cucmcdr-service-unavailable-is-listed-twice,
title = {CUCM CDR and CMR field reference: source note cucmcdr-service-unavailable-is-listed-twice},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucmcdr-service-unavailable-is-listed-twice},
note = {Source note cucmcdr-service-unavailable-is-listed-twice, checked 2026-09-15}
}