# System Shutdown

Note: This option is only available through the Text console.

System shutdown is an orderly shutdown procedure that warns callers when the system terminates call processing. You should run this program before turning off the power to a NuPoint UM node. We recommend that you perform this procedure during periods of low-call traffic.

## What Happens When I Give the System Shutdown Order?

- The system asks for permission to shut down the node (module).

- The node's phone lines are displayed with their state indicated ("active", "idle", or "stopped")

- Phone lines that are carrying calls at the time you give the shutdown command are taken offhook when the caller who leaves a message, or the user who is logged into a mailbox, either presses a key or allows a silence timeout.

- - The caller or user hears the shutdown warning and is disconnected:
    "I'm sorry, the system is currently shut down for maintenance. Please call back later."

  - EXAMPLE: If the shutdown occurs while a user is making a message for another system user, he can continue to record the message. But when he presses a key to review the message, or stops recording for the silence timeout interval, the system interrupts the call, plays the shutdown warning, sends the message, and logs out the user.
    - Phone lines taken offhook by the system are listed as idle in the line states display (prevented from answering new incoming or outgoing calls).
    - Phone lines with interrupted calls are listed as stopped in the line states display.

- All message-waiting indicator requests are canceled. Message lights are turned off even when there are unplayed messages in mailboxes.

- - Pager/message delivery calls and re-pages are not made during shutdown or afterward.

  - Message Indicator Request Queue Length shows how many message requests were lost on shutdown.

  - The system displays the status of each line and the lengths of the message indictor and paging request queues.

  - Lights are not turned on until new messages are received after shutdown.

- Callers who try to access the shutdown lines will hear a busy signal until the system is completely rebooted.