SIP 484 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-484

Published

2023-10-30

Updated

unknown

Accessed

2026-10-02

HTTP status

200

License

Microsoft Learn terms; no-redistribution; short excerpts and locators only

Source notes citing this source

• Teams Direct Routing Microsoft response code 560484 with SIP 484 means 'Invalid number format. SBC rejected the call'. in context
• For 560484 Microsoft advises reviewing call records with CallEndSubReason 560484 for called-number trends by country/region to decide on extra normalization rules for extension dialling or user education. in context
• Microsoft notes 560484 failures may be ignorable when users dial invalid numbers, but can also come from missing SBC configuration in a call transfer scenario (CallType ByotOutUserForwarding). in context

Cite this source record

APA

WarmTransfer. (2023, October 30). SIP 484 and Microsoft response codes - Microsoft Teams. WarmTransfer. https://warmtransfer.net/knowledge/sources/ms-learn-dr-sip-response-codes-484

BibTeX

@misc{warmtransfer-ms-learn-dr-sip-response-codes-484,
  title  = {SIP 484 and Microsoft response codes - Microsoft Teams},
  author = {{WarmTransfer}},
  year   = {2023},
  url    = {https://warmtransfer.net/knowledge/sources/ms-learn-dr-sip-response-codes-484},
  note   = {Microsoft, accessed 2026-10-02}
}