Claim record · CUCM CDR and CMR field reference
The high byte of a SIP-derived Unified CM cause code is not a fixed function of the SIP status code: across the 41 distinct status codes in the table the difference between the status code and the marker takes 6 different values, so decoding the SIP status out of a cause code needs the table rather than arithmetic.
field-pattern · verified 2026-09-15
1174405137 0x46000011 CCM_SIP_486_BUSY_HERE
- Vendor
- Cisco
- Product
- Cisco Unified Communications Manager
- Subsystem
- Call detail records
- Deployment
- on-premises
- Region
- not restricted
- Release range
- Release 12.5(1)
- Status
- field-pattern
- Confidence
- 0.90
- Verified
- 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 Cisco-Specific Call Termination Cause Codes
Cite this claim
APA
WarmTransfer. (2026, September 15). CUCM CDR and CMR field reference: claim cucmcdr-the-sip-marker-byte-is-not-arithmetic. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucmcdr-the-sip-marker-byte-is-not-arithmetic
BibTeX
@misc{warmtransfer-claim-cucmcdr-the-sip-marker-byte-is-not-arithmetic,
title = {CUCM CDR and CMR field reference: claim cucmcdr-the-sip-marker-byte-is-not-arithmetic},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucmcdr-the-sip-marker-byte-is-not-arithmetic},
note = {Claim cucmcdr-the-sip-marker-byte-is-not-arithmetic, verified 2026-09-15}
}