Load balancing using site default device pool
---------------------------------------------

.. tip:: 

   :ref:`use-action-search-to-navigate-automate`



This procedure load balances using the default site device pool and updates the default device pool to 
point to the appropriate Cisco Unified Communication Manager (Cisco UCM) group.

.. note:: 
   
   A default device pool is created for each site when the site dial plan is deployed for the Type 1 through 
   Type 4 dial plan schema groups.

   Since you're using the default device pool, you don't need to create any additional device pools directly on CUCM. 
   Using this configuration, redundancy is gained within a site while load balancing is gained across multiple 
   sites. Since there is one device pool per site, all devices at a site home to the same sequence of CUCMs, 
   providing failover redundancy. Devices in different sites home to different sequences of CUCMs, providing 
   load balancing across the sites.

   The default site device pool is not created until the Type 1 to 4 site dial plan has been deployed, which 
   updates the Site Defaults to use the default device pool. If the site dial plan has not been deployed, you 
   will not see a site default device pool in the form Cu<customerId>Si<siteId>-DevicePool.

   In Automate you can determine the default device pool for a site in the site **Defaults** page. 




**Perform these steps**:

1. Log in as Provider, Reseller, or Customer administrator.
2. Choose the relevant site. 
3. Follow the steps outlined in *Create a Site Dial Plan* if you have not already done so; 
   the Create a Site Dial Plan procedure creates the default site device pool instance.
4. Log in to Cisco Unified Communications Manager and create one or more UCM groups. 
   
   .. note:: 
      
      See Cisco Unified Communications Manager Administration Guide.

5. In Automate, perform a sync operation of the UCM via the **Data Sync** page. 

   This sync updates the Automate cache and makes the UCM groups that were added directly on 
   Cisco Unified Communications Manager available to Automate. 

6. Associate a UCM group to a device pool and choose a UCM group other than the default group in the 
   **Call Manager Group** drop-down list. See "Associate a CUCM Group to a Device Pool".

   .. note:: 

      To verify that the phone or user uses the device pool as expected, open a user's settings 
      in Automate, then select the required **Device Pool Name** setting from the drop-down under the 
      **Phones** tab.