Intra-Site On-Net Call
----------------------

This call type occurs between two endpoints located at the same site. As shown
in the following figure, media traffic is between the endpoints.

On-Net Call (Intra-Site)

|dialplan-intra-site|

+---------------+--------------------------------------------------------------+
| Usage         | * Target numbering must follow the Numbering Plan            |
|               |   described in this chapter                                  |
|               | * Target number can be a short code, extension, or ESP       |
|               |   +Extension, DN or ISP + DN, depending on the               |
|               |   enterprise internal numbering plan                         |
|               | * Target number is used unless restricted by Class of        |
|               |   Service                                                    |
|               | * Codec is dynamically selected based on the endpoints used  |
+---------------+--------------------------------------------------------------+
| Accessibility | User can perform On-Net call from any endpoint registered    |
|               | with Cisco Unified Communications Manager                    |
+---------------+--------------------------------------------------------------+
| Default       | Available to all users                                       |
| Configuration |                                                              |
| Configuration | * Feature availability cannot be changed                     |
| Choices       | * Codec preferences are configuration                        |
+---------------+--------------------------------------------------------------+
| Redundancy    | Available to users without restrictions                      |
+---------------+--------------------------------------------------------------+
| Survivability | Available to users in fallback mode with the following       |
|               | exceptions:                                                  |
|               |                                                              |
|               | * Phone must be registered to the SRST Gateway               |
|               | * Users must be able to make On-Net calls only to the same   |
|               |   site users connected to the same SRST Gateway              |
|               | * No COS is available during survivability mode              |
+---------------+--------------------------------------------------------------+
| Endpoint      | * Cisco IP phones                                            |
| Types         | * Cisco ATA                                                  |
| Supported     | * Cisco VG                                                   |
+---------------+--------------------------------------------------------------+

+---------------+--------------------------------------------------------------+
|               | ::                                                           |
|               |                                                              |
| Examples      |    Case 1: DN = ISP+SLC+Extension                            |
|               |    Phone A (DN=8 300 4040)                                   |
|               |    Dial 4050 (Phone B extension)                             |
|               |    as Phone A Connected Number shows 8 300 4040              |
|               |                                                              |
|               |    Phone B (DN=8 300 4050)                                   |
|               |    On Answer, display shows 8 300 4040 -Calling Party Number |
|               |                                                              |
|               |    Case 2: DN = SLC+Extension; Extension Prefix is used for  |
|               |    Extension dialing (for example 6)                         |
|               |    Phone A (DN=300 4040)                                     |
|               |    Dial 6 4050 (Phone B extension)                           |
|               |    Phone A Connected Number shows 300 4050                   |
|               |                                                              |
|               |    Phone B (DN=300 4050)                                     |
|               |    On Answer display shows 300 4040 -Calling Party Number    |
|               |                                                              |
|               |    Case 3a: DN= Extension {Dialing with full DN}             |
|               |    Phone A (DN=40404040)                                     |
|               |    Dial 40404050 (Phone B extension)                         |
|               |    Phone A Connected Number shows 40404050                   |
|               |                                                              |
|               |    Phone B (DN=40404050)                                     |
|               |    On Answer display shows 40404040 as the Calling           |
|               |    Party Number                                              |
|               |                                                              |
|               |    Case 3b: DN=Extension {Dialing with Short Code}           |
|               |    Phone A (DN=40404040)                                     |
|               |    Dial \*4050 (short code for Phone B)                      |
|               |    Phone A Connected Number shows 40404050                   |
|               |                                                              |
|               |    Phone B (DN=40404050)                                     |
|               |    On Answer display shows 40404040 as the Calling           |
|               |    Party Number                                              |
+---------------+--------------------------------------------------------------+


.. |dialplan-intra-site| image:: /src/images/dialplan-intra-site.png