Voice recording for IVR and queue by telephone

[hwohlert]

This option is really missing. Currently a microphone must be installed in the system to record messages. And there are many reasons why it should be possible to record speech for the IVR and queue over the telephone. Two of them::
- Workstations that do not have a headset or microphone, but do have a telephone.
- Working from home and only accessing the admin interface via VPN/RDP, but there is a router phone.

I hope this feature will be (back) soon.