The difference of compliance recording policy between Advanced communications and other subscription is that Advanced communications have your compliance recording policy automated, and become part of the communication workflow, without the need for manual intervention.
Advanced Communications provides enhanced calling and meeting capabilities that address a spectrum of communication needs.
For more details, you can read this article: https://learn.microsoft.com/en-us/microsoftteams/teams-add-on-licensing/advanced-communications#what-is-advanced-communications.
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