Source note · Troubleshooting Teams Direct Routing
Microsoft response code 510559 with SIP 403 ('Get Outbound routing - No viable path') means the dialed number matched no number pattern in the user's voice routes. Causes include a misdialed number or internal policy that blocks certain countries or patterns.
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 · 510559 403 Get Outbound routing - No viable path (Forbidden)
Cite this note
APA
WarmTransfer. (2026, September 25). Troubleshooting Teams Direct Routing: source note teams-direct-routing-troubleshooting-403-510559. WarmTransfer. https://warmtransfer.net/knowledge/claims/teams-direct-routing-troubleshooting-403-510559
BibTeX
@misc{warmtransfer-claim-teams-direct-routing-troubleshooting-403-510559,
title = {Troubleshooting Teams Direct Routing: source note teams-direct-routing-troubleshooting-403-510559},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/teams-direct-routing-troubleshooting-403-510559},
note = {Source note teams-direct-routing-troubleshooting-403-510559, checked 2026-09-25}
}