SIP over TLS toward the carrier

Sources and go deeper

Same checked list as T03-R05-when-the-portal-and-the-shell-disagree.html.

• Use Teams admin roles — Microsoft Learn — last checked 2026-10.
• PowerShell — Wikipedia — last checked 2026-10. Wikipedia fallback for background. Confirm the vendor page before you change a tenant
• Microsoft Teams blog index — Community — last checked 2026-10. Community index for the Microsoft Teams blog. This is the index, not a claim that a post discusses this room

sources.json