I don't know of any feature like this on CCM, but most voicemail systems have the ability to record and send a message as a "future delivery" on a specified time and date. This future delivery message will not ring the phone, but will light the message lamp etc. Here is the info for Unity;
When you send a message, Cisco Unity sends the message to your intended recipients without ringing their extensions. You can send voice messages to Cisco Unity subscribers, and to public and private distribution lists.
You can address a message to more than one recipient or type of recipient. You address a message by using the phone keypad to either spell the subscriber name or to enter the extension of the subscriber. When you address messages to private lists, you must use number entry.
When you send a message by phone, you can choose from the following special delivery options:
Urgent Mark a message urgent so that Cisco Unity sends it before regular messages.
Return Receipt Request a return receipt so that Cisco Unity notifies you when the recipient opens the message.
(Note that you may not be able to receive all types of receipts, even though the Cisco Unity phone menus allow you to request them. Ask your Cisco Unity administrator whether Cisco Unity is set up to send receipts to subscribers.)
Private Mark a message private so that the recipient knows to treat it confidentially.
***Future Delivery Mark a message for future delivery so that Cisco Unity waits to send the message on the day and time that you specify.
Are you getting this error “Installer User Interface Mode Not Supported. The installer cannot run in this UI mode. To specify the interface mode, use the -i command-line option, followed by the UI mode identifier. The value UI mode identifiers...
The below trick might come handy when you have to add a new node to a cluster but you don't have or is unsure of the security password for the publisher. This procedure has been around for ages.
1) Login into the CLI of the Publisher.