By default beginning April 2017, voicemail transcription is available for all Phone System in Microsoft 365 users. When you receive a voicemail, the message will be transcribed in the body of the voicemail email you receive in your mailbox. If you do not want to have transcription for your messages, ask your admin to disable it for you.
Once the Event is created, it will automatically override the usual schedule during the specified timeframe. Events will always be prioritized over the usual Menus. For receptionist groups, there is a specific setting called Routing Option. You can choose whether to set the Events before or after the Receptionist group. It can be found under the settings of a specific event. If the Event is set before the Receptionist group, inbound calls are routed directly to the menu and are further routed depending on the Timeout settings of the Event; If the Event is set after the receptionist group, inbound calls first go to the receptionist groups according to the usual schedule, and then go to the Event. Recording And Uploading Greetings

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General voicemail greeting: used as the default voicemail greeting if no other greeting type is set. Internal voicemail greeting: used to greet people who call your department from within your own company (i.e. from another extension).Generally, this is only applicable to very large companies. External voicemail greeting: played for people who call from outside your company.