# Set up Yealink DECT cordless phones

> Connect a Yealink DECT base station and handsets, or turn a T5 desk phone into a DECT base.

- URL: https://kb.voipcloud.online/phones-and-apps/yealink/dect-phones/
- Section: Phones and apps › Yealink
- Type: guide
- Applies to: All countries
- Last reviewed: 2026-11-09

Yealink DECT phones have a base station that connects to your network, and cordless handsets that pair with it. You register a SIP account on the base, then choose which handsets use it. A T5 series desk phone can also act as a small DECT base with a USB dongle.

## Before you start

- One SIP device in **PBX** › **Devices** for each line you need, each added to a [User](https://kb.voipcloud.online/pbx/accept-make-divert/user/), with the configuration applied. Each SIP device needs a device licence.
- The SIP details of each device: select it in **PBX** › **Devices** and note the **Domain** (shown as `server:port`), **Username** and **Password**.
- A computer on the same network as the base.

If your base is in the **Yealink device model** list in the SIP device's **Yealink settings** (for example the SIP-W60B), you can [auto-provision](https://kb.voipcloud.online/phones-and-apps/yealink/auto-provisioning/) it instead of step 2. Enter the base's MAC address on each SIP device to give it several lines, then assign the lines to handsets in step 3.

## 1. Connect the base station

1. Plug the base's **Internet** port into your network with an Ethernet cable, and connect the power supply.
2. Pair the handsets with the base, following the instructions in the box.
3. Find the base's IP address on a handset: press **OK**, select **Status**, then **Base**, and note the **IPv4** address. These menu names are from a W53H.

## 2. Register the SIP account

1. On the computer, type the base's IP address into a web browser and sign in. The default username and password are both `admin`.
2. Go to **Account** › **Register** and choose the **Account** to set up, for example **Account1**.
3. Set **Line Active** to **Enabled**, and enter a **Label** and **Display Name**.
4. Enter the **Username** from the PBX in **Register Name** and **User Name**, and the **Password** in **Password**.
5. Under **SIP Server 1**, enter the **Domain** from the PBX: the part before the colon in **Server Host**, and the part after it in **Port**.
6. Set **Transport** to **TCP** and **Server Expires** to **120**.
7. Click **Confirm**.

![DECT base Account Register page with the SIP details blurred, TCP transport and 120-second expiry](https://kb.voipcloud.online/images/phones-and-apps/yealink/dect-phones-register.webp)

For more handsets with their own numbers, repeat these steps with **Account2**, **Account3** and so on, using a different SIP device for each.

## 3. Choose which handsets use each line

1. Go to **Account** › **Number Assignment**.
2. Under **Incoming lines**, tick the lines each handset should ring for.
3. Under **Outgoing lines**, tick the lines each handset can call out on, and choose its **Default** line.
4. Click **Confirm**.

![Number Assignment page with one line ticked for each handset](https://kb.voipcloud.online/images/phones-and-apps/yealink/dect-phones-number-assignment.webp)

## Check it works

- **Register Status** shows the account as registered.
- In **PBX** › **Devices**, the device shows **Online**.
- Call the handset from another user. It should ring on the handsets you ticked.

If the device stays **Offline**, check the details and that the configuration was applied. A device that signs in with wrong details is blocked for 5 minutes. See [Device offline](https://kb.voipcloud.online/troubleshooting/device-offline/).

## Use a T5 desk phone as a DECT base

Yealink T5 desk phones such as the T53W, T54W, T57W and T58A can act as a DECT base when you plug in a Yealink **DD10K** DECT USB dongle (sold separately). The desk phone still works as normal, and up to four cordless handsets (such as the W52H, W53H and W56H) can pair with it.

### Register handsets

1. Plug the DD10K into the desk phone's USB port.
2. Pair each handset in one of these ways:
   - In the desk phone's web interface, go to **Status** › **Handset** and click **Register** next to a handset number.
   - On the desk phone, go to **Menu** › **Settings** › **DECT Settings** › **Handsets**.
3. Choose which lines each handset uses in **Account** › **Number Assignment**, as above.

![Handset page on a T53W with two handsets registered](https://kb.voipcloud.online/images/phones-and-apps/yealink/dect-phones-t5-handsets.webp)

### Master and slave mode

With exactly one handset registered, you can pair it with the desk phone as a master and slave. The handset then rings with the desk phone and uses the same number and caller ID.

- Turn it on in the web interface under **Master And Slave** on the **Status** › **Handset** page, or on the desk phone in **Menu** › **Settings** › **DECT Settings** › **Select Slave**.
- To move a call answered on the desk phone to the handset, press the **More** soft key, then **Call Shift**. On a T58A or T58V, swipe right on the call to show **Call Shift**.
- Depending on the mode you choose, calls may not be movable between the two.

## Next steps

- [Transfer calls on a Yealink phone](https://kb.voipcloud.online/phones-and-apps/yealink/transfer-calls-on-yealink/), including DECT handsets
- [Reset a Yealink phone](https://kb.voipcloud.online/phones-and-apps/yealink/factory-reset/)