choose your own telephony

This tag covers Choose Your Own Telephony, the Microsoft Entra option for organizations that still need SMS or voice codes for multifactor authentication after Microsoft stops providing those messages itself. The tagged discussion focuses on the CYOT timetable: provider details becoming public on October 21, 2026, configuration opening October 30, and Microsoft-provided SMS and voice delivery ending in two stages during 2027. It is aimed at administrators who must bring their own carrier and plan a migration before tenants still sending MFA codes by text lose that delivery path, making it relevant to identity, sign-in security, and enterprise IT planning.