Source note · Troubleshooting Teams Direct Routing
Direct Routing failures carry two codes. The SIP response code (CallEndReason) is three digits and says what happened. The Microsoft response code (CallEndSubReason) is usually six digits, though it can be empty or longer, and says why. Both appear in the Teams admin center and in the Power BI Quality of Experience Report for PSTN.
Checked 2026-09-25
- Vendor
- Microsoft
- Product
- Microsoft Teams Phone Direct Routing
- Subsystem
- sip-response-codes
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-09-25
- Checked
- 2026-09-25
Sources
- Microsoft and SIP response codes — Microsoft · tier 2 current vendor documentation · Introduction, two bullets and following paragraph
Cite this note
APA
WarmTransfer. (2026, September 25). Troubleshooting Teams Direct Routing: source note teams-direct-routing-troubleshooting-code-pair. WarmTransfer. https://warmtransfer.net/knowledge/claims/teams-direct-routing-troubleshooting-code-pair
BibTeX
@misc{warmtransfer-claim-teams-direct-routing-troubleshooting-code-pair,
title = {Troubleshooting Teams Direct Routing: source note teams-direct-routing-troubleshooting-code-pair},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/teams-direct-routing-troubleshooting-code-pair},
note = {Source note teams-direct-routing-troubleshooting-code-pair, checked 2026-09-25}
}