> 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/telecom-references/transmission-and-lines/test-create-line-interface.md).

# Test Create Line Interface

#### ***Applies to version(s): v2.5, v2.6.***

Now you will need to create a new line interface for your ISDN-SIP Gateway system. Line interface is a generic term for TDM physical interfaces. TelcoBridges products support 3 types of physical interfaces:

* [T1/E1/J1 interfaces](https://github.com/telcobridges-main/tmedia-wiki/tree/main/reference/transmission/t1-e1-and-j1-interfaces/README.md)
* [DS3 interfaces](https://github.com/telcobridges-main/tmedia-wiki/tree/main/reference/protocols/ds3-interfaces/README.md)
* [SONET/SDH interfaces](https://github.com/telcobridges-main/tmedia-wiki/tree/main/reference/protocols/sonet-sdh-interfaces/README.md)

To create a new line interface:

1- Select **Tdm Interfaces-->Line Interfaces** from the navigation panel

![Toolpack v2.5 Navigation Panel Line Interfaces](https://docs.telcobridges.com/w/images/8/8e/Toolpack_v2.5_Navigation_Panel_Line_Interfaces.png)

2- Click **Create New Line Interface** to create a single interface ,or **Create Multiple Line Interfaces** to create many interfaces at once

![Toolpack v2.5 Create Line Interface](https://docs.telcobridges.com/w/images/7/79/Toolpack_v2.5_Create_Line_Interface.png)

3- Create the new line interface:

* Enter a **name** for the interface
* Set a **type** for the interface
* Set a **local index** for the line
* Select a **length** and an **encoding scheme**
* Click **Create**

![Toolpack v2.5 Creating Line Interface](https://docs.telcobridges.com/w/images/6/6f/Toolpack_v2.5_Creating_Line_Interface.png)

4- Verify that the **"Line interface was successfully created"** message is displayed

![Toolpack v2.5 Line Interface Created](https://docs.telcobridges.com/w/images/a/a7/Toolpack_v2.5_Line_Interface_Created.png)


---

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