Skype for Business (S4B) Voicemail User Guide (4xxxx extensions)

Note: The instructions below are for voicemail on Skype for Business (S4B) extensions (4xxxx) with Office 365 (Exchange Online). For campus phones with 3xxxx, please refer to the article .

As of Feb 28, 2020, Microsoft completed the migration of Exchange Online Voicemail (Unified Messaging) to the new Azure Cloud Voicemail. The migration was seamless to end-users; all greetings and voicemails were migrated as necessary. The changes below apply to Skype users with Office 365 (Exchange Online) mailboxes.

Using Azure Cloud Voicemail (CVM)
(known as Skype for Business)

Voicemail Playback/Storage

CVM voicemails are still stored in the users Exchange mailbox with the attached voicemail and transcription.

Users can playback voicemails by one of the following methods:

  • Skype for Business: via the Phone tab

  • Teams: select Calls from the left-hand menu and then click Voicemail


  • Email: double click the link for the audio mp3 file and open in a compatible audio program

  • Accessing your existing Polycom Skype for Business IP phone through the message center

How to record a voicemail greeting

Skype for Business Client

  1. Navigate to the Phone tab. Under the Voice Mail heading, click on the

    voicemail icon and select Change Greetings.

  2. Follow the prompts once connected to record your greetings.

Microsoft Teams

  1. Click your Profile icon in the top-right, then select Settings.

  2. Select the Calls sub-menu. Click on the Configure voicemail button.

  3. Click on the Record a greeting button.

  4. Follow the prompts once connected to record your greetings. If you don't see your Keypad, click on '...'  in your floating toolbar, and choose Keypad.

Online portal for voicemail settings

It has been noted at this time that the voicemail settings portal does not currently work in the Firefox browser.

The online portal allows you to configure: 

  • Call Answer Rules: How you want your calls to be handled when they reach the voicemail service

  • Prompt Language (if required): The language you want your greeting prompt to be played in

  • Out of Office greetings: Customize Out of Office greeting message settings (choose when to play your Out of Office greeting)

  • Text-to-Speech Customized Greeting: If you do not have an Internet-connected device available to call the CVM system

    • If you want to use the text-to-speech option and you already have an existing greeting recorded in a client (e.g. Skype, Teams, etc.), you will need to access your voicemail from the client, access your existing personal greeting, let it play through and then choose option 3 to delete it in order to revert back to the default.

    • At this point, you can set the text-to-speech option to override the default text-to-speech greeting.

Access the online portal at

The Calling and Call Queues settings cannot be customized at this time.

Discontinued voicemail features

  • PSTN Dial-In Access

    • Dial-in number (for accessing voicemail, change greetings, etc.) is no longer available within Azure Cloud Voicemail

  • Play on phone

    • Allowed Unified Messaging system to call users at a specific number for voicemail playback or greeting recordings

  • Silence detection

    • If someone leaves a voicemail and forgets to hang up, the max length of the voicemail could be received with silence

  • User setting to disable transcription

    • Transcription is now enabled by default and cannot be turned off

  • Disable/Enable Missed Call Notification

    • This is no longer configurable and is on by default


Need help?

Contact the IST Service Desk online or 519-888-4567 ext. 44357.

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