Source note · Carrier escalation evidence packages
For failed Direct Routing calls the report gives Final SIP code, Final Microsoft subcode and Final SIP phrase as the reasons the call failed.
Checked 2026-09-24
- Vendor
- Microsoft
- Product
- Teams admin center PSTN usage report
- Subsystem
- Direct Routing tab
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-09-24
- Checked
- 2026-09-24
Sources
- Microsoft Teams PSTN usage report — Microsoft · tier 2 current vendor documentation · Direct Routing callout table callout 5, Failure time (UTC)
Cite this note
APA
WarmTransfer. (2026, September 24). Carrier escalation evidence packages: source note carrier-escalation-evidence-ms-final-codes. WarmTransfer. https://warmtransfer.net/knowledge/claims/carrier-escalation-evidence-ms-final-codes
BibTeX
@misc{warmtransfer-claim-carrier-escalation-evidence-ms-final-codes,
title = {Carrier escalation evidence packages: source note carrier-escalation-evidence-ms-final-codes},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/carrier-escalation-evidence-ms-final-codes},
note = {Source note carrier-escalation-evidence-ms-final-codes, checked 2026-09-24}
}