The following permissions:
- To enable voicemail: Voicemail > Voicemail > Receive
- To enable calls: Conversation > Call > Add
- To enable the ability to listen to a voicemail: Voicemail > Voicemail > Stream
- To enable the ability to delete a voicemail: Voicemail > Voicemail > Delete
- To enable the ability to download a voicemail: Voicemail > Voicemail > Download
- To enable the ability to listen to a group voicemail: Voicemail > Group Voicemail > Stream
- To enable the ability to delete a group voicemail: Voicemail > Group Voicemail > Delete