# SMS trunks reference

Use this reference to review the filters, columns, values, and actions on
the **SMS > SMS Trunks** page in the DIDWW User Panel.

The page lists individual SMS trunks together with SMS trunk groups. Expand
a trunk group to review its member trunks and their priorities.

## Filters

Use the controls above the table to narrow the displayed trunks and trunk
groups. Filters can be combined.

| Filter | Filter condition | Description |
| --- | --- | --- |
| Name | Text input | Filters the list by the entered trunk or trunk group name. Click **Submit** to apply the value, or **Cancel** to close the filter. |
| [Type](#sms-trunks-reference-type-values) | Single-select filter | Filters the list by the selected trunk type. **Any** does not restrict the results by type. |
| [Direction](#sms-trunks-reference-direction-values) | Single-select filter | Filters the list by message direction. **In/Out** (default) shows all trunks and trunk groups. **In** shows trunk groups and inbound-only trunks. **Out** shows outbound-only trunks. The list updates when you select a value. |

## Table columns

| Column | Access | Description |
| --- | --- | --- |
| Name | Read-only in the list | The friendly name of the trunk or trunk group. A trunk group row shows the number of member trunks and can be expanded to show them. The list can be sorted by name. |
| [Type](#sms-trunks-reference-type-values) | Read-only | The type of the trunk or trunk group. |
| [Direction](#sms-trunks-reference-direction-values) | Read-only | An icon that shows whether the trunk handles inbound SMS, outbound SMS, or both. Hover over the help icon in the column header to show the icon legend. |
| Priority | Editable for trunk group members | The order in which DIDWW attempts the member trunks of a trunk group. The trunk with the highest number is attempted first. See [Set priorities in an SMS trunk group](trunk-groups/how-to-guides/set-sms-trunk-group-priorities.html). |
| Credentials | Read-only | A key icon that opens the credentials of an HTTP OUT, SMPP ESME, or SMPP SMSC trunk. See [View HTTP OUT trunk credentials](http-out/how-to-guides/view-http-out-trunk-credentials.html), [View SMPP ESME trunk credentials](smpp-esme/how-to-guides/view-smpp-esme-trunk-credentials.html), and [View SMPP SMSC trunk credentials](smpp-smsc/how-to-guides/manage-smpp-smsc-trunk.html#user-panel-sms-smpp-smsc-credentials). |
| Actions | Contextual | Opens the [actions](#sms-trunks-reference-actions) available for the trunk or trunk group. |

### Type values

| Value | Description |
| --- | --- |
| Trunk group | An SMS trunk group that combines SMS trunks for failover. See [SMS trunk groups](trunk-groups/sms-trunk-groups.html). |
| Email | An SMS to Email trunk that forwards inbound SMS to an email address. See [SMS to Email trunk](sms-to-email/sms-to-email-trunk.html). |
| HTTP IN | An HTTP IN trunk that forwards inbound SMS to an HTTP endpoint. See [HTTP IN trunk](http-in/http-in-trunk.html). |
| HTTP OUT | An HTTP OUT trunk that accepts SMS submitted to the Outbound SMS API. See [HTTP OUT trunk](http-out/http-out-trunk.html). |
| SMPP ESME | An SMPP ESME trunk that your application binds to. See [SMPP ESME trunk](smpp-esme/smpp-esme-trunk.html). |
| SMPP SMSC | An SMPP SMSC trunk that DIDWW uses to bind to your SMSC. See [SMPP SMSC trunk](smpp-smsc/smpp-smsc-trunk.html). |
| OTP | The **OTP Verify SMS** entry that DIDWW uses to send SMS for [OTP Verification](../../otp-verification/index.html). It shows outbound SMS only, has no credentials, and offers only the **SMS Logs** action. It cannot be edited, deleted, or added to a trunk group. |

### Direction values

| Value | Description |
| --- | --- |
| Inbound/Outbound | The trunk delivers inbound SMS and sends outbound SMS. Shown for SMPP ESME and SMPP SMSC trunks. |
| Inbound | The trunk delivers inbound SMS only. Shown for SMS to Email and HTTP IN trunks. |
| Outbound | The trunk sends outbound SMS only. Shown for HTTP OUT trunks and the OTP entry. |

## Actions

Click the **Actions** button next to a trunk or trunk group to open its
actions. The available actions depend on the trunk type.

| Action | Availability | Description |
| --- | --- | --- |
| Send SMS | HTTP OUT trunks | Opens the **Send SMS** window to send a message through the trunk. See [Send SMS from the User Panel using an HTTP OUT trunk](http-out/how-to-guides/send-sms-using-http-out-trunk.html). |
| SMS Logs | All trunks, trunk groups, and the OTP entry | Opens **SMS Logs** filtered by the selected trunk or trunk group and the last 24 hours. Trunk groups open the **Inbound** tab, and HTTP OUT trunks open the **Outbound** tab. See [Inbound SMS logs](../../logs-analytics/sms-logs/inbound-logs.html#inbound-logs) and [Outbound SMS logs](../../logs-analytics/sms-logs/outbound-logs.html#outbound-logs). |
| Check Status | SMPP ESME and SMPP SMSC trunks | Shows the bind status of the trunk. See [Check SMPP ESME trunk connection status](smpp-esme/how-to-guides/check-smpp-esme-trunk-connection-status.html) and [Check SMPP SMSC trunk connection status](smpp-smsc/how-to-guides/check-smpp-smsc-trunk-connection-status.html). |
| Edit | All trunks and trunk groups except the OTP entry | Opens the trunk or trunk group settings for editing. |
| Delete | All trunks and trunk groups except the OTP entry | Opens the deletion confirmation. When deleting a trunk group, choose whether to keep or delete its member trunks. See [Manage SMS trunk groups](trunk-groups/how-to-guides/manage-sms-trunk-groups.html). |

## Related resources

- [Get started](index.html#sms-trunks-get-started) - Set up a basic path for
  receiving or sending SMS.
- [SMS to Email trunk settings reference](sms-to-email/sms-to-email-trunk-settings-reference.html) - Review SMS to
  Email trunk settings.
- [HTTP IN trunk settings reference](http-in/http-in-trunk-settings-reference.html) - Review HTTP IN trunk
  settings.
- [HTTP OUT trunk settings reference](http-out/http-out-trunk-settings-reference.html) - Review HTTP OUT trunk
  settings.
- [SMPP ESME trunk settings reference](smpp-esme/smpp-esme-trunk-settings-reference.html) - Review SMPP ESME trunk
  settings.
- [SMPP SMSC trunk settings reference](smpp-smsc/smpp-smsc-trunk-settings-reference.html) - Review SMPP SMSC trunk
  settings.
- [SMS trunk group reference](trunk-groups/sms-trunk-group-reference.html) - Review SMS trunk group
  settings and priorities.