Source note · Carrier escalation evidence packages
Microsoft's SIP response code guidance applies to Direct Routing PSTN calls and does not apply to Calling Plan or Operator Connect deployments.
Checked 2026-09-24
- Vendor
- Microsoft
- Product
- Teams Phone Direct Routing
- Subsystem
- response codes
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-09-24
- Checked
- 2026-09-24
Sources
- Microsoft and SIP response codes — Microsoft · tier 2 current vendor documentation · Opening Note
Cite this note
APA
WarmTransfer. (2026, September 24). Carrier escalation evidence packages: source note carrier-escalation-evidence-ms-codes-dr-only. WarmTransfer. https://warmtransfer.net/knowledge/claims/carrier-escalation-evidence-ms-codes-dr-only
BibTeX
@misc{warmtransfer-claim-carrier-escalation-evidence-ms-codes-dr-only,
title = {Carrier escalation evidence packages: source note carrier-escalation-evidence-ms-codes-dr-only},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/carrier-escalation-evidence-ms-codes-dr-only},
note = {Source note carrier-escalation-evidence-ms-codes-dr-only, checked 2026-09-24}
}