A lightweight agent runs in the background and records all Android messages and/or calls and uploads them to be archived in Microsoft 365.

Use a TeleMessage connector in the Microsoft 365 compliance center to import and archive SMS, MMS, voice calls, and call logs from Android mobile phones. After you set up and configure a connector, it connects to your organization's TeleMessage account once every day, and imports the mobile communication of employees using the TeleMessage Android Archiver to mailboxes in Microsoft 365.

After data from Android mobile phones is stored in user mailboxes, you can apply Microsoft 365 compliance features such as Litigation Hold, Content Search, and Microsoft 365 retention policies to Android Archiver data. For example, you can search Android Archiver mobile communication using Content Search or associate the mailbox that contains the Android Archiver connector data with a custodian in an Advanced eDiscovery case. Using an Android Archiver connector to import and archive data in Microsoft 365 can help your organization stay compliant with government and regulatory policies.

Your organization works with TeleMessage to set up an Android Archiver connector. For more information, see Android Archiver.
Once every 24 hours, SMS, MMS, voice calls, and call logs from your organization's Android mobile phones are copied to the TeleMessage site.
The Android Archiver connector that you create in the Microsoft 365 compliance center connects to the TeleMessage site every day and transfers the Android data from the previous 24 hours to a secure Azure Storage location in the Microsoft Cloud. The connector also converts the Android data to an email message format.
The connector imports the mobile communication items to the mailbox of a specific user. A new folder named Android Archiver is created in the specific user's mailbox and the items are imported to it. The connector does mapping by using the value of the User’s Email address property. Every email message contains this property, which is populated with the email address of every participant of the email message. In addition to automatic user mapping using the value of the User’s Email address property, you can also define a custom mapping by uploading a CSV mapping file. This mapping file should contain User’s mobile Number and the corresponding Microsoft 365 mailbox address for each user. If you enable automatic user mapping and provide a custom mapping, for every email item the connector will first look at custom mapping file. If it doesn't find a valid Microsoft 365 user that corresponds to a user's mobile number, the connector will use the User ‘s email address property of the email item.

Android Archiver

pateikė TeleMessage