Non-CER Through Aggregation
---------------------------

This call type is the standard enhanced emergency call to the Emergency Service
Center (for example, US Enhanced 911 or 911). If configured, the call is routed
through Aggregation. Emergency Calling is provided, regardless of the Class of
Service, as long as the phone is registered.

Non-CER through aggregation includes:

* SIP/SCCP signaling traffic for the endpoint is between the endpoint and Cisco
  Unified Communications Manager
* SIP signaling traffic for SIP trunking is between the SIP trunking Session
  Border Controller (SBC) and Cisco Unified Communications Manager
* Media traffic is between the endpoint and SIP trunk SBC
  
Emergency Call (Non-CER Through Aggregation)

|dialplan-emergency-non-CER-aggregation|

+----------------+-------------------------------------------------+
| Usage          | * The Emergency number follows the Numbering    |
|                |   Plan requirements                             |
|                | * The Emergency number can include an access    |
|                |   code if necessary                             |
|                | * The Calling Party Number is one of:           |
|                |                                                 |
|                |   * DDI of the Line or Site Emergency           |
|                |     Published Number if the line does not       |
|                |     have a DDI                                  |
|                |   * Site Emergency Published Number             |
|                |   * For Extension Mobility where a user logs    |
|                |     in to a Remote Site, the Site Emergency     |
|                |     Publish Number is used                      |
|                | * Emergency Calls are based on the device and   |
|                |   not the line                                  |
+----------------+-------------------------------------------------+
| Accessibility  | User can perform Off-Net call from any endpoint |
|                | registered with Cisco Unified Communications    |
|                | Manager                                         |
+----------------+-------------------------------------------------+
| Usage Example  | User can dial any PSTN number from their phone  |
+----------------+-------------------------------------------------+
| Default        | * Available to all registered phones            |
| Configuration  | * DDI of the DN is sent if available;           |
|                |   otherwise, Site Emergency Publish Number is   |
|                |   sent                                          |
+----------------+-------------------------------------------------+
| Configuration  | * Can be configured to send only the Site       |
| Choices        |   Emergency Publish Number for all emergency    |
|                |   calls                                         |
+----------------+-------------------------------------------------+
| Redundancy     | Available to users without restrictions         |
+----------------+-------------------------------------------------+
| Survivability  | Not available to users in SRST fallback mode    |
+----------------+-------------------------------------------------+
| Class of       | Available to all Classes of Service             |
| Service        |                                                 |
+----------------+-------------------------------------------------+
| Endpoint Types | * Cisco IP phones                               |
| Supported      | * Cisco ATA                                     |
|                | * Cisco VG                                      |
+----------------+-------------------------------------------------+


.. |dialplan-emergency-non-CER-aggregation| image:: /src/images/dialplan-emergency-non-CER-aggregation.png