The voicemail greeting toggle is locked, the user cannot toggle this on and off.
Voicemail greeting feature
- User voice Settings
Select to receive calls on the Computer only, this should enable the toggle:
This toggle will be disabled if the Select the device you want to receive calls on is not Computer. when the user selects to receive the calls on a personal phone (Imported number), or both personal number and Computer (Both) this toggle will be disabled. This is because we cannot control the voicemail settings for your personal device.