Microsoft reports the Direct Routing SIP response code (CallEndReason) and Microsoft response code (CallEndSubReason) in the Teams admin center and the Power BI QER for PSTN.
Checked 2026-10-02
- Vendor
- Microsoft
- Product
- Teams Phone Direct Routing
- Subsystem
- Response codes
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-10-02
- Checked
- 2026-10-02
Sources
- Microsoft and SIP response codes — Microsoft · tier 2 current vendor documentation · Introductory section before 'Direct Routing error codes'
Cite this note
APA
WarmTransfer. (2026, October 2). Troubleshooting SIP 404 Not Found and 484 Address Incomplete call failures: source note sip-404-484-troubleshooting-teams-codes-reported. WarmTransfer. https://warmtransfer.net/knowledge/claims/sip-404-484-troubleshooting-teams-codes-reported
BibTeX
@misc{warmtransfer-claim-sip-404-484-troubleshooting-teams-codes-reported,
title = {Troubleshooting SIP 404 Not Found and 484 Address Incomplete call failures: source note sip-404-484-troubleshooting-teams-codes-reported},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/sip-404-484-troubleshooting-teams-codes-reported},
note = {Source note sip-404-484-troubleshooting-teams-codes-reported, checked 2026-10-02}
}