Microsoft response code 510563 with SIP 403 means the user is only allowed to make domestic calls and attempted an international call; the suggested action is to check whether the user is limited to domestic calling.

Checked 2026-09-30

Vendor
Microsoft
Product
Teams Phone Direct Routing
Subsystem
dial-out restrictions
Deployment
multi-tenant
Region
not restricted
Release range
current as of 2026-09-30
Checked
2026-09-30

Sources

Cite this note

APA

WarmTransfer. (2026, September 30). Troubleshooting SIP 403 Forbidden from a carrier: source note sip-403-forbidden-troubleshooting-ms-510563. WarmTransfer. https://warmtransfer.net/knowledge/claims/sip-403-forbidden-troubleshooting-ms-510563

BibTeX

@misc{warmtransfer-claim-sip-403-forbidden-troubleshooting-ms-510563,
  title  = {Troubleshooting SIP 403 Forbidden from a carrier: source note sip-403-forbidden-troubleshooting-ms-510563},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/sip-403-forbidden-troubleshooting-ms-510563},
  note   = {Source note sip-403-forbidden-troubleshooting-ms-510563, checked 2026-09-30}
}

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