SIP 403 and Microsoft response codes - Microsoft Teams

Publisher

Microsoft

URL

https://learn.microsoft.com/en-us/troubleshoot/microsoftteams/phone-system/direct-routing/microsoft-sip-response-codes-403

Published

2024-11-22

Updated

unknown

Accessed

2026-09-25

HTTP status

200

License

Microsoft Learn content under Microsoft Terms of Use; no-redistribution; short excerpts and locators only

Source notes citing this source

• Microsoft response code 510532 with SIP 403 ('No trunk config was found' or 'RuntimeApi trunk config not found for customer') means Direct Routing found no trunk configuration for the call. Microsoft says to check that calls come from the correct SBC FQDN for the tenant, that the Contact header FQDN is registered to the tenant, and that the gateway configuration is correct. in context
• 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. in context
• 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. in context
• For user-provisioning 403s: 510560 means the user isn't Enterprise Voice enabled; 510562 means the user can't make outbound PSTN calls; 510563 means the user is limited to domestic calls. For 510560 and 510562, Microsoft says to check the Phone System licence and Direct Routing enablement. in context

Cite this source record

APA

WarmTransfer. (2024, November 22). SIP 403 and Microsoft response codes - Microsoft Teams. WarmTransfer. https://warmtransfer.net/knowledge/sources/ms-ts-dr-sip-codes-403

BibTeX

@misc{warmtransfer-ms-ts-dr-sip-codes-403,
  title  = {SIP 403 and Microsoft response codes - Microsoft Teams},
  author = {{WarmTransfer}},
  year   = {2024},
  url    = {https://warmtransfer.net/knowledge/sources/ms-ts-dr-sip-codes-403},
  note   = {Microsoft, accessed 2026-09-25}
}