# Managing GCOS

GCOS is mainly used when a single NuPoint Unified Messaging system serves more than one company and you want to prevent people belonging to different companies from sending messages to each other.

You can:

- List GCOS

- Add a GCOS

- Edit a GCOS

- Delete a GCOS

- Assign a New GCOS to a Mailbox

- See a Description of GCOS fields

## Listing GCOS

To display a list of all GCOS in the system

- In the navigation tree, click Class of Service, and then click Group COS.

## Add a GCOS

1. In the navigation tree, click Class of Service, and then click Group COS. The Group COS list is displayed.

2. Click Add. The Add GCOS form is displayed.

3. Do one of the following:

1. - Copy an existing GCOS by selecting one from the list and clicking the Copy from button. The parameters of that GCOS will be copied into your new GCOS, which you can then edit as required. The Next Available GCOS number is automatically applied.
     OR

   - Chose to manually select all limits for the new GCOS

4. In the Number field, enter a number for this COS, or click Next Available to automatically assign the next number.

5. In the Name field, enter a name (up to 15 alphanumeric characters) for this GCOS.

6. From the Groups listing, select all groups that will be included in this GCOS.

7. To save the GCOS and return to the Group COS list, click Save.

## Edit a GCOS

1. In the navigation tree, click Class of Service, and then click Group COS. The Group COS list is displayed.

2. Select the GCOS you want to modify and then click Edit.

3. Select or clear group check boxes as required.

4. To save the GCOS and return to the Group COS list, click Save.

## Delete a GCOS

Deleting a GCOS that is in use by mailboxes will cause all of those mailboxes to be assigned the default (1) GCOS. A warning message is displayed to allow you to cancel the operation. If you are deleting the default GCOS, the mailboxes assigned to it will be assigned to the next available GCOS. You cannot delete the last remaining GCOS in the system; therefore, you cannot select all GCOS for deletion.

Note: At any time during the deletion of a GCOS (but before you confirm the deletion), you can click the Cancel button to discard your changes and return to the Group COS list.

To delete one or multiple GCOS

1. In the Group COS list, select one or multiple GCOS, and then click Delete. The system will prompt you to confirm the deletion.

2. To confirm the deletion, click Yes for a single deletion or Yes to all for a range.
   OR
   To reject the deletion, click No.

## Assign a New GCOS to a Mailbox

- Follow the procedure to edit a mailbox and when instructed to edit mailbox parameters, enter the new GCOS on the Class of Service tab.

## GCOS Fields Description

Field | Description | Values
Number | *Required field. Determines the number of the new GCOS. You can manually enter a number from 1-64 as long as it is not already assigned to a GCOS. You can also click the "Use next available number" link to have the system assign the next available number to the GCOS. | Enter a number in the range of 1-64. The number must not be already used for an existing GCOS. Or click the "Use next available number" link.
Name | *Required field. This is the name of the GCOS. (Note: You can create unnamed GCOS using the Text console but they are not supported in the Web console. If you encounter an unnamed GCOS, use the Text console to name it.) | Maximum 15 alphanumeric characters.
(Group numbers) | Select the groups (by number) that you want to include in the GCOS. Mailboxes that are assigned this GCOS will be members of the groups that you select here. There are 128 groups. | Select any combination of groups from 1 to 128.