SIP over TLS toward the carrier

Sources and go deeper

Same checked list as T13-R01-customer-service-and-contact-center.html.

• Dynamics 365 Contact Center — Microsoft Learn — last checked 2026-10.
• Study guide AB-250 — Microsoft Learn — last checked 2026-10.
• Retired certification exams — Microsoft Learn — last checked 2026-10.
• Call centre — 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