In Teams Direct Routing, a Microsoft response code starting with 560 means the final SIP response was generated by the SBC, with the last three digits giving the SIP code; other codes mean a Microsoft service generated it.

Checked 2026-10-02

Vendor
Microsoft
Product
Teams Phone Direct Routing
Subsystem
Response codes
Deployment
multi-tenant
Region
not restricted
Release range
current as of 2026-10-02
Checked
2026-10-02

Sources

Cite this note

APA

WarmTransfer. (2026, October 2). Troubleshooting SIP 404 Not Found and 484 Address Incomplete call failures: source note sip-404-484-troubleshooting-teams-560-prefix-sbc. WarmTransfer. https://warmtransfer.net/knowledge/claims/sip-404-484-troubleshooting-teams-560-prefix-sbc

BibTeX

@misc{warmtransfer-claim-sip-404-484-troubleshooting-teams-560-prefix-sbc,
  title  = {Troubleshooting SIP 404 Not Found and 484 Address Incomplete call failures: source note sip-404-484-troubleshooting-teams-560-prefix-sbc},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/sip-404-484-troubleshooting-teams-560-prefix-sbc},
  note   = {Source note sip-404-484-troubleshooting-teams-560-prefix-sbc, checked 2026-10-02}
}

Read in context