> For the complete documentation index, see [llms.txt](https://prosbcdocs.telcobridges.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://prosbcdocs.telcobridges.com/tmedia-documentation/configuration/creating-a-cas-nap.md).

# Creating a CAS NAP

> **Applies to:** Tmedia 3.0, 3.2, 3.3

Now that you have created a CAS stack, you must create a network access point to finish configuring your system. A Network Access Point (NAP) represents the entry point to another network or destination peer.

To create a network access point (NAP):

1- Click **NAPs** in the navigation panel

![Naps 0 A](https://docs.telcobridges.com/w/images/a/a7/Naps_0_A.png)

2- Click **Create New NAP**

![Naps 1 A](https://docs.telcobridges.com/w/images/5/59/Naps_1_A.png)

3- Configure the new NAP:

* Enter a **name** for the NAP
* Select a **user-created profile**, if not, select **default**
* Click **Create**

![Naps 2 A](https://docs.telcobridges.com/w/images/3/34/Naps_2_A.png)

4- Verify that the **NAP was successfully created** message appears

![Naps 3 A](https://docs.telcobridges.com/w/images/0/09/Naps_3_A.png)

5- Associate a CAS R2 stack with the NAP:

* Select an **interface** (the newly-created **CAS R2 stack**)
* Click the **"<<"** button to add the interface to the list

![Naps 4 A](https://docs.telcobridges.com/w/images/3/30/Naps_4_A.png)

6- Select a value for [**Channel Usage**](https://github.com/telcobridges-main/tmedia-wiki/tree/main/reference/parameters/channel-usage/README.md), to avoid call collision

* Click **Save**

![Naps 4 1 A](https://docs.telcobridges.com/w/images/0/09/Naps_4_1_A.png)

7- Verify that the **"NAP was successfully updated"** message appears

![Naps 5 A](https://docs.telcobridges.com/w/images/6/6e/Naps_5_A.png)

**Path**

```
/configurations/@[configuration_name]/naps/@[nap_name]
```

**Parameters (text)**

```
/configurations/mg_17_1_22_performance/naps/CASr1
cas_stacks         = [ "CA005577_00", "CA005577_01" ]
default_profile    = "default"
name               = "CASr1"

/configurations/mg_17_1_22_performance/naps/CASr1/call_rate_limiting
maximum_call_burst                  = 0
maximum_calls_per_second            = 0
maximum_simultaneous_incoming_calls = 0
maximum_simultaneous_outgoing_calls = 0
maximum_simultaneous_total_calls    = 0
processing_delay_high_threshold     = "0 millisecond"
processing_delay_low_threshold      = "0 millisecond"

/configurations/mg_17_1_22_performance/naps/CASr1/tdm_cfg
channel_usage      = "All-trunks lowest timeslot"

/configurations/mg_17_1_22_performance/naps/CASr1/tdm_cfg/overlap_parameters
```

**Parameters (json)**

```
{
  "call_rate_limiting" : {
    "maximum_call_burst" : 0,
    "maximum_calls_per_second" : 0,
    "maximum_simultaneous_incoming_calls" : 0,
    "maximum_simultaneous_outgoing_calls" : 0,
    "maximum_simultaneous_total_calls" : 0,
    "processing_delay_high_threshold" : "3 seconds",
    "processing_delay_low_threshold" : "1 second"
  },
  "cas_stacks" : [
  ],
  "default_profile" : "default",
  "isdn_stacks" : [
  ],
  "isup_cic_groups" : [
  ],
  "line_services" : [
  ],
  "name" : "@[nap_name]",
  "port_ranges" : [
  ],
  "sip_cfg" : {
    "advanced_parameters" : {
      "183_triggers_call_progress" : false,
      "map_any_response_to_available_status" : true,
      "privacy_type" : "P-Asserted-Identity"
    },
    "authentication_parameters" : {
      "ignore_realm" : false,
      "password" : "",
      "realm" : "",
      "reuse_challenge" : false,
      "user" : ""
    },
    "filtering_parameters" : {
      "filter_by_local_port" : true,
      "filter_by_proxy_address" : true
    },
    "network_address_translation" : {
      "local_method" : "",
      "remote_method" : "None"
    },
    "poll_remote_proxy" : true,
    "proxy_address" : "",
    "proxy_port" : 5060,
    "proxy_port_type" : "UDP",
    "registration_parameters" : {
      "address_to_register" : "",
      "register_to_proxy" : false
    },
    "sipi_parameters" : {
      "append_f_to_outgoing_calls" : false,
      "call_progress_method" : "183 Call Progress",
      "content_type" : "itu-t",
      "enable" : false,
      "isup_protocol_variant" : "ITU"
    }
  },
  "sip_transport_servers" : [
  ],
  "tdm_cfg" : {
    "append_f_to_outgoing_calls" : false,
    "append_pound_to_outgoing_calls" : false,
    "channel_usage" : "Per-trunk lowest timeslot",
    "overlap_parameters" : {
      "enable_overlap_receiving" : false,
      "enable_overlap_sending" : false,
      "overlap_receiving_expected_digits" : 0,
      "overlap_receiving_inter_digit_timeout" : "20 seconds",
      "overlap_receiving_timeout" : "0 millisecond"
    },
    "remove_trailing_f_or_pound_from_incoming_calls" : true
  },
  "voip_media_only_cfg" : {
    "nat_local_method" : ""
  }
}
```

### List of Parameters

* [Name](https://github.com/telcobridges-main/tmedia-wiki/tree/main/reference/parameters/name/README.md)
* [Default Profile](https://github.com/telcobridges-main/tmedia-wiki/tree/main/reference/parameters/default-profile/README.md)
* [Channel Usage](https://github.com/telcobridges-main/tmedia-wiki/tree/main/reference/parameters/channel-usage/README.md)


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