Extension w/out a Device

How do you add an extension that is not linked to any device.
In other words I need extension that goes directly to VoiceMail.

Thanks

Simply make an extension with type of custom.

Tried that already and i get the following recording.
“I am sorry an error has occured”

Empty the DIAL field.

I also suggest you do not post duplicate threads, it’s a sure way to piss people off.

I am unable to empty the dial field.
After reloading it just populates itself back to CUSTOM/1075