> 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/web-portal-previous/web-portal-3-2/protocol-stack/protocol-stack-settings/configuring-dns-parameters.md).

# Configuring DNS Parameters

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

### To configure the DNS parameters

1- Enable Advanced Transport Server Configuration in the SIP configuration window.

* Click **SIP** in the navigation panel.

![ConfigureDnsParams 0](https://docs.telcobridges.com/w/images/8/84/ConfigureDnsParams_0.png)

2- Select a SIP configuration.

![ConfigureDnsParams 1](https://docs.telcobridges.com/w/images/a/a4/ConfigureDnsParams_1.png)

3- Click **DNS Parameters** in the SIP configuration window.

* Enable the DNS, cache and ENUM support (if required)
* Enter the IP address of the DNS server
* Click **Save**

![ConfigureDnsParams 5](https://docs.telcobridges.com/w/images/7/71/ConfigureDnsParams_5.png)

4- Verify that the 'SIP transport server was successfully updated' message is displayed.

![ConfigureDnsParams 6](https://docs.telcobridges.com/w/images/c/c2/ConfigureDnsParams_6.png)

**Path**

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

**Parameters (text)**

```
/configurations/@[configuration_name]/sip_stacks/@[sipStack_Name]/dns_parameters
"local_dns_transport_server" : {
    "ip_interface" : "@[hardware_name].@[voip_Name]",
    "port" : 1024,
    "port_type" : "UDP"
    },
cache_expire_time          = "12 hours"
enabled                    = false
query_retry_count          = 3
query_timer                = "20 seconds"
server_address             = ""
server_dns_port            = 53
use_cache                  = true
use_enum                   = false
```

**Parameters (json)**

```
{
  "dns_parameters" : {
    "cache_expire_time" : "12 hours",
    "enabled" : false,
    "local_dns_transport_server" : {
      "ip_interface" : "@[hardware_name].@[voip_Name]",
      "port" : 1024,
      "port_type" : "UDP"
    },
    "query_retry_count" : 3,
    "query_timer" : "20 seconds",
    "server_address" : "",
    "server_dns_port" : 53,
    "use_cache" : true,
    "use_enum" : false
  }
 }
```

### List of Parameters

* [Enabled](https://prosbcdocs.telcobridges.com/telecom-references/parameter-reference/ip-network#d)
* [Use Cache](https://prosbcdocs.telcobridges.com/telecom-references/parameter-reference/sip#u)
* [Use Enum](https://prosbcdocs.telcobridges.com/telecom-references/parameter-reference/sip#u)
* [Cache Expire Time](https://prosbcdocs.telcobridges.com/telecom-references/parameter-reference/cache-expire-time)
* [Query Timer](https://prosbcdocs.telcobridges.com/telecom-references/parameter-reference/m3ua#q)
* [Query Retry Count](https://prosbcdocs.telcobridges.com/telecom-references/parameter-reference/m3ua#q)
* [Server Address](https://prosbcdocs.telcobridges.com/telecom-references/parameter-reference/m3ua#s)
* [Server DNS Port](https://prosbcdocs.telcobridges.com/telecom-references/parameter-reference/server-dns-port)
* [Local Port Type](https://prosbcdocs.telcobridges.com/telecom-references/parameter-reference/sip#l)
* [Local DNS Port](https://prosbcdocs.telcobridges.com/telecom-references/parameter-reference/sip#l)
* [Local IP Interface](https://prosbcdocs.telcobridges.com/telecom-references/parameter-reference/sip#l)


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