Azure Communication Services' standalone services retire on September 30, 2028. Retired services include Email, SMS, WhatsApp messaging, Chat, Rooms, number management, Job Router, Direct Routing and the UI Library SDKs. Customers without an ACS resource created before October 23, 2026 cannot acquire phone numbers for SMS or PSTN calling. Voice and video calling stay available after 2028 only with Microsoft Teams integrations, on new SDK major versions.
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