Troubleshooting Voicemail Reception in Microsoft Office365

C.

The migration from Microsoft Exchange to Microsoft Office 365 may affect the configuration of the Cisco Unified Messaging Service (UMS) and cause issues with receiving voicemail via email. To resolve the issue, it is necessary to update the Cisco UMS configuration. Therefore, option A is the correct answer.

Cisco Unified Messaging Service is a messaging system that integrates voicemail and email, allowing users to receive voicemail messages in their email inbox. It is commonly used in Cisco Unified Communications Manager (CUCM) environments.

During the migration from Microsoft Exchange to Office 365, the configuration of the Cisco UMS may need to be updated to match the new email platform. This includes changing the SMTP server settings to point to Office 365 and updating the credentials used for authentication.

Unchecking the synchronize connection and exchange mailboxes option is not relevant to this issue, as it is related to the synchronization between Exchange mailboxes and Cisco UMS.

Changing the Service Type field is also not relevant to this issue, as it is related to the type of voicemail service (e.g., IMAP, Cisco Unity Connection), which is not likely to have been affected by the migration to Office 365.

Selecting the Use corporate email address option is also not relevant to this issue, as it is related to the sender email address used for voicemail notifications, rather than the ability to receive voicemail via email.

Therefore, option A is the correct answer, as updating the Cisco UMS configuration is necessary to resolve the issue of not receiving voicemail via email after migrating from Exchange to Office 365.