Configure Cisco Unified Communications Manager Groups
-----------------------------------------------------

In VOSS-4-UC 10.x/11.5(x), use Cisco Unified
CM Groups to configure Cisco Unified Communications Manager groups.

A Cisco Unified Communications Manager group specifies a prioritized list of up
to three Cisco Unified Communications Managers. The first Cisco Unified
Communications Manager in the list serves as the primary Cisco Unified
Communications Manager for that group, and the other members of the group serve
as secondary and tertiary (backup) Cisco Unified Communications Managers.

Each device pool has one Cisco Unified Communications Manager group that is
assigned to it. When a device registers, it attempts to connect to the primary
(first) Cisco Unified Communications Manager in the group that is assigned to
its device pool. If the primary Cisco Unified Communications Manager is not
available, the device tries to connect to the next Cisco Unified Communications
Manager that is listed in the group, and so on.

Cisco Unified Communications Manager groups provide important features for your
system:

* Redundancy - This feature enables you to designate a primary and backup Cisco
  Unified Communications Managers for each group.
* Call processing load balancing - This feature enables you to distribute the
  control of devices across multiple Cisco Unified Communications Managers.

For most systems, you need to have multiple groups, and you need to assign a
single Cisco Unified Communications Manager to multiple groups to achieve better
load distribution and redundancy.

Cisco Unified Communications Manager group configuration considerations
.......................................................................

Before configuring a Cisco Unified Communications Manager group, you must
configure the Cisco Unified Communications Managers that you want to assign as
members of that group.

After you have configured the Cisco Unified Communications Manager group, you
can use it to configure device pools. Devices obtain their Cisco Unified
Communications Manager group list setting from the device pool to which they are
assigned.


1. Sign in as the provider, reseller, or customer  administrator.                                           

   .. note::
                                                            
      For Shared Architecture deployment, you must sign in only as a
      provider or reseller admin so that only provider or reseller admins can
      add Unified CM.                              
2. If you are adding a new instance, ensure the hierarchy path is set to the
   target node for the new instance.
3. Perform one of the following:                            

   * If you signed in as the provider or reseller administrator, select
     **Device Management > CUCM > Unified CM Groups**.
   * If you signed in as the customer administrator, select
     **Device Management > Advanced > Unified CM Groups**.
4. Perform one of the following:                            

   * To add a new Cisco Unified Communications Manager group, click **Add**, then
     go to step 5.
                                                          
     To edit an existing Cisco Unified Communications Manager group, click on the
     line item in the list of existing instances. Go to step 5.
5. Modify the following fields as required.
                                                            
   +----------------------+-------------------------------------+
   | Option               | Description                         |
   +======================+=====================================+
   | Name (Mandatory)     | Enter the name of the new group.    |
   +----------------------+-------------------------------------+
   | Auto-registration    | Check the Auto-registration Cisco   |
   | Cisco Unified        | Unified Communications Manager      |
   | Communications       | Group check box if you want this    |
   | Manager Group        | Cisco Unified Communications        |
   |                      | Manager group to be the default     |
   |                      | Cisco Unified Communications        |
   |                      | Manager group when                  |
   |                      | auto-registration is enabled.       |
   |                      |                                     |
   |                      | Leave this check box unchecked if   |
   |                      | you do not want devices to          |
   |                      | auto-register with this Cisco       |
   |                      | Unified Communications Manager      |
   |                      | group.                              |
   |                      |                                     |
   |                      | Tip                                 |
   |                      |                                     |
   |                      | Each Cisco Unified Communications   |
   |                      | Manager cluster can have only one   |
   |                      | default auto-registration group.    |
   |                      | If you choose a different Cisco     |
   |                      | Unified Communications Manager group|
   |                      | as the default auto-registration    |
   |                      | group, that is, you check the       |
   |                      | Auto-registration Cisco Unified     |
   |                      | Unified Communications Manager      |
   |                      | Group check box for a different     |
   |                      | Cisco Unified Communications Manager|
   |                      | group, the previously chosen        |
   |                      | auto-registration group no longer   |
   |                      | serves as the default for the       |
   |                      | cluster; the Auto-registration      |
   |                      | Cisco Unified Communications        |
   |                      | Manager check box displays for the  |
   |                      | previously chosen group (the        |
   |                      | original default), and the check box|
   |                      | gets disabled for the group that    |
   |                      | now serves as the default.          |
   +----------------------+-------------------------------------+
   | Unified CM Group     | Click **Add (+)** to select a       |
   | Items (Mandatory)    | Cisco Unified Communications        |
   |                      | Manager to add to the group. Repeat |
   |                      | as necessary to add multiple Cisco  |
   |                      | Unified Communications Managers to  |
   |                      | the group.                          |
   |                      |                                     |
   |                      | Click the **Remove (-)** button to  |
   |                      | remove a Cisco Unified              |
   |                      | Communications Manager from the     |
   |                      | group.                              |
   |                      |                                     |
   |                      | Click the up and down arrow buttons |
   |                      | to change the order of the Cisco    |
   |                      | Unified Communications Managers in  |
   |                      | the group.                          |
   +----------------------+-------------------------------------+
   | Priority (Mandatory) | Enter the priority number for this  |
   |                      | Cisco Unified Communications        |
   |                      | Manager in the group. The smaller   |
   |                      | the integer, the higher the         |
   |                      | priority.                           |
   +----------------------+-------------------------------------+
   | Selected Cisco       | This field displays the Cisco       |
   | Unified              | Unified Communications Managers     |
   | Communications       | that are in the Cisco Unified       |
   | Managers             | Communications Manager group.       |
   +----------------------+-------------------------------------+

6. Click **Save**.    

   The group appears in the Call Manager Groups list. When  you click on the name
   of the Cisco Unified Communications Manager group in the list, the group's
   characteristics are displayed.

   To modify any of these characteristics, make your changes and click **Save**.  

   To delete a group, check the box to the left of the Name column in the group
   list, and click **Delete**.

   .. note::

      Verify if the Unified CM is deployed in Shared Mode. Sign in to the
      Unified CDM, and navigate to **Device Management > CUCM > Servers**. On the    
      Publisher tab, verify the Multi-Tenant field is set to Shared.