Source note · Troubleshooting Teams Direct Routing
Other Microsoft-generated 403s: 510534 is a calling number blocked by inbound call blocking; 510546 is no trunk found by Location-Based Routing criteria, often toll-bypass restriction or PreventTollBypass; 10500 is a Location-Based Routing site-state block; 10553 is a failed invite to a required compliance recorder; 10199 is private calling disabled for the callee.
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
- SIP 403 and Microsoft response codes - Microsoft Teams — Microsoft · tier 2 current vendor documentation · Sections 510534 403, 510546 403, 10500 403, 10553 403, 10199 403
Cite this note
APA
WarmTransfer. (2026, September 25). Troubleshooting Teams Direct Routing: source note teams-direct-routing-troubleshooting-403-other. WarmTransfer. https://warmtransfer.net/knowledge/claims/teams-direct-routing-troubleshooting-403-other
BibTeX
@misc{warmtransfer-claim-teams-direct-routing-troubleshooting-403-other,
title = {Troubleshooting Teams Direct Routing: source note teams-direct-routing-troubleshooting-403-other},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/teams-direct-routing-troubleshooting-403-other},
note = {Source note teams-direct-routing-troubleshooting-403-other, checked 2026-09-25}
}