# Assigning Additional Serial Ports for Programmable RS-232 Interface

This procedure describes how to assign additional serial ports for the RS-232 Message Waiting Indicators Application. This procedure assumes:

- You have defined one serial port for the application, and it is using index 1(see Defining a RS-232 Serial Port).

- You have configured the programmable RS-232 interface (see Configure Programmable RS-232 Interface).

- You have a serial interface card installed in your server.

The additional serial ports automatically copy their settings from the serial port assigned to index 1. Changes made to that serial port will also be applied to these serial ports.

Perform the following steps to assign additional serial ports:

1. Reach the NuPoint Voice Configuration Main Menu, then go to the NuPoint Voice Configuration Offline Menu:
   From the Main Menu, select (S) System Maintenance, (R) Reconfiguration, (R) Reconfigure System, and then (G) Offline Menu.

2. If desired, duplicate the configuration by selecting (B) Duplicate Active Configuration. The server copies the current (active) configuration. When copying is completed, the short form of the Offline Menu appears.

3. Select (M) RS232 Application Only.

4. Verify that the Serial Port Selected (at the top of the menu) is the one you want to use for the RS-232 Programmable Interface Application. Select a different port if it is not correct.

5. Navigate to the RS-232 Programmable $CTI Serial Port Menu by selecting (M) Multiple Programmable.

6. Assign additional serial ports for RS-232 message waiting by selecting (A) Add Serial Port.
   When the prompt Serial ports to add = appears, enter the number (1-32) of the serial port on the card that you want to assign to the RS-232 Programmable interface.
   You can enter multiple port numbers by separating them with commas (1,3,5).

7. If necessary, delete serial ports from this function by selecting (D) Delete Serial Port.
   When the prompt Serial ports to delete = appears, enter the number (1-32) of the serial port on the card that you want to remove from the RS-232 Programmable interface.
   You can enter multiple port numbers by separating them with commas (1,3,5)..

8. View the assigned serial ports by selecting (S) Show Serial Port Table.
   When the prompt $CTI PORTS = [1,2,3] appears, enter the number (1-32) of the serial port you want to view.

9. Save the parameter settings by exiting to the Main Menu.

10. You must activate the inactive configuration for the changes to take effect.