# Use a desk phone with Line

> Add a SIP desk phone in Channels › Calls › Desk phones, enter its settings in the handset, and it rings with your team and calls out on your Line number.

Source: https://useline.io/help/calls/desk-phones  
Section: Calls and numbers  
Last updated: 2026-11-06  
Roles: Owner, Admin

A desk phone can ring with your team and place calls on your Line number. The phone must be a SIP phone. Yealink, Poly, Grandstream and Cisco phones are SIP phones. An old analogue phone needs a SIP adapter first.

## Before you start

- You need the **Owner** or **Admin** role.
- The phone must support SIP over TLS and SRTP.
- The person who uses the phone must be a member of your workspace.

## Add the desk phone

1. Open **Channels**.
2. Select **Calls**.
3. Select **Desk phones**.
4. In **Name**, type a name, for example "Reception".
5. In **Rings for**, select the team member.
6. Select **Add desk phone**.

Line shows the **Server**, **Port**, **Username** and **Password**. The password is shown one time. Copy it before you select **Done**.

## Enter the settings in the phone

1. Open the phone's web page or menu.
2. Add a new SIP account.
3. Type the **Server** in the registrar and the outbound proxy fields.
4. Type the **Port**.
5. Type the **Username** in the user name and authentication name fields.
6. Type the **Password**.
7. Set the transport to **TLS**.
8. Turn on **SRTP** for media.
9. Save. The phone registers.

## Ring the desk phone

A desk phone rings as a device of its team member. Add a **Ring Members/Groups** step to the call workflow and select that member. The desk phone rings with their other devices.

To ring only the desk phone, set **Ring devices** to **Desk phone only** for that member.

The desk phone rings only while the member's status is **Available**.

## Call out from the desk phone

Dial the number on the phone. The call goes out on your Line number and shows in the call log under the team member. Calls use credits in the same way as calls in the app.

## What the desk phone shows

The desk phone shows your Line number, not the caller's number.

## Change or remove a desk phone

- To make a new password, select **New password**. The phone stops working until you enter the new password.
- To remove the phone, select **Remove**. It stops working at once.

## Common problems

**The phone does not register.** Check the server, username and password. Check that the transport is TLS and that SRTP is on.

**The phone does not ring.** The member's status is not Available, or the workflow does not select that member.

**Line says it cannot connect an emergency call.** Line cannot connect 999 or 112 from a desk phone. Use another phone.

**Line refuses a number you dial.** Line does not call premium-rate, personal or special-rate numbers from a desk phone. Calls to countries outside the UK need support to enable them. Contact support@useline.io.

## Related articles

- [Make and receive calls in your browser](https://useline.io/help/calls/make-and-receive-calls.md): Take calls in the Line web app while a tab is open and your status is Available. Make calls from New › Make a Call, a contact or an Inbox thread.
- [Forward calls to a mobile or another phone](https://useline.io/help/calls/forward-calls.md): Verify the phone in Channels › Calls › Forward numbers, then add a Forward Calls step to the call workflow. Line forwards only to verified numbers.
- [Set up what happens when someone calls](https://useline.io/help/workflows/call-workflows.md): A call workflow starts with Call received and lists your numbers. It rings your team, forwards the call, runs your agent or takes a voicemail.
- [Choose the number people see when you call](https://useline.io/help/calls/caller-id.md): Outgoing calls show your Line number. To show your own existing number, verify it in Channels › Calls › External numbers and pick it in Show as.