We often get complaints from users about "why isn't the voicemail deleted from 3CX when I delete its email from my inbox?". We've seen this feature work well with other phone systems. So it also seems quite feasible since 3CX already supports Exchange Calendar Status Synchronization and microsoft exchange unified messaging, but it is either or. Having an 'option' to enable voicemail email synchronization would be great to allow voicemail to be managed from both exchange mailbox and the 3CX client. Cisco, Mitel, NEC, etc. have all had this feature for years: Synchronizing Voice Messages in Unity Connection and Exchange Mailboxes in Single Inbox 3CX delivers new voice messages to your e-mail address and to your voice mailbox. If you delete a voice message from your e-mail client, the message is also deleted in your voice mailbox. This would provide simple integration between your e-mail client and your voice mailbox.