---
title: "Yealink SIP-T48S"
slug: "yealink-sip-t48s"
description: "Looking for comprehensive online help with your Yealink SIP-T48S? Our help guide has you covered!  With clear and concise explanations, our guide is user-friendly and accessible for both beginners and advanced users alike. ENA by Zayo is here to help you get the most out of your Yealink T48S phone."
updated: 2024-08-30T14:30:19Z
published: 2024-08-30T14:30:19Z
canonical: "help.ena.com/yealink-sip-t48s"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://help.ena.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Yealink SIP-T48S

[Download Quick Reference Guide](https://cdn.us.document360.io/ed04ecbf-0868-4e77-a11e-6df8b843143d/Images/Documentation/QRG-Yealink-T48S.pdf?sv=2026-02-06&spr=https&st=2026-10-30T21%3A17%3A38Z&se=2026-10-30T22%3A17%3A38Z&sr=c&sp=r&sig=1iBX%2Bkpr0Y9cpy7v7vLarTFvWCuk7iEEJcinShQSgHM%3D)

## Navigating the Touch Screen

- To open the main menu, tap
- To return to the home screen from another screen, tap .
- To go back to the previous menu, tap .
- To select a soft key, tap the soft key.
- To select an item, tap the item.
- To scroll up or down, tap  or  .

## Setup and Check Voicemail

### Set Up Voicemail for Your Extension

The first time you access the Message Center, the system will walk you through your voicemail setup. To access the Message Center, press or tap the **Connect** soft key.

### Check Voicemail from Your Phone

To listen to voice messages:

1. Tap  and then tap **Connect**, or press .
2. Follow the voice prompts to listen to your voice messages.

### Check Voicemail from Another service-provided phone

1. Press the **MESSAGE** button or **VMail** soft key on the phone you are using.
2. When you hear the voicemail greeting, press the star key (*).
3. Enter your full 10-digit number when prompted.NoteIf you have an extension-only number, your full 10-digit number will be a customer prefix followed by your extension. If you do not know your customer prefix, check with your System Administrator.
4. Follow the prompts.

### Check Voicemail Remotely

If you have a direct dial number:

1. Call your number.
2. When you hear your voicemail greeting, press the star key (*).
3. Follow the prompts.

If you have an extension-only number:

1. Dial 877-675-1152.
2. Enter your full 10-digit number.NoteIf you have an extension-only number, your full 10-digit number will be a customer prefix followed by your extension. If you do not know your customer prefix, check with your System Administrator.
3. Follow the prompts.

### Set Up and Check Voicemail on Line Forked to Your Phone (e.g., Main)

If you have another line on your phone in addition to your personal extension:

1. Press that line key to select it.
2. Press the **MESSAGE** button.

The first time you access the Message Center for the forked line, the system will walk you through your voicemail setup.

### Voicemail Menu Options

NoteDepending on the feature package assigned to the extension, sub-menus may vary slightly from those shown in the chart.

![ENA SmartVoice voicemail menu options(4)](https://cdn.us.document360.io/ed04ecbf-0868-4e77-a11e-6df8b843143d/Images/Documentation/ENA%20SmartVoice%20voicemail%20menu%20options(4).png?sv=2026-02-06&spr=https&st=2026-10-30T21%3A17%3A38Z&se=2026-10-30T22%3A17%3A38Z&sr=c&sp=r&sig=1iBX%2Bkpr0Y9cpy7v7vLarTFvWCuk7iEEJcinShQSgHM%3D)

## Place Calls

### Using the Handset

1. Pick up the handset.
2. Enter the number, and then tap **Send**.

### Using the Speakerphone

1. With the handset on-hook, press .
2. Enter the number
3. Tap **Send**.

### Using the Headset

1. With the headset connected, press  to activate the headset mode.
2. Enter the number.
3. Tap **Send**.

NoteDuring a call, you can alternate between the headset, hands-free speakerphone, and handset modes by pressing the **Headset** key, the **Speakerphone** key, or by picking up the handset. Headset mode requires a connected headset.

## Answer Calls

### Using the Handset

Pick up the handset.

### Using the Speakerphone

Press .

### Using the Headset

1. With the headset connected, press  to activate the headset mode.
2. Enter the number, and then press the **Send** soft key.

NoteYou can reject an incoming call by pressing the **Reject** soft key.

## End Calls

### Using the Handset

Hang up the handset or tap the **End Call** soft key.

### Using the Speakerphone

Press or tap the **End Call** soft key.

### Using the Headset

Tap the **End Call** soft key.

## Redial

Press to enter the **Placed Calls** list, press or to select the desired entry, and then press the **Send** soft key.

Press twice when the phone is idle to dial out the last dialed number.

## Mute and Un-mute Calls

Press to mute the microphone during a call.

Press again to unmute the call.

## Hold and Resume Calls

To place a call on hold press![](https://cdn.us.document360.io/ed04ecbf-0868-4e77-a11e-6df8b843143d/Images/Documentation/image-1657274447971.png?sv=2026-02-06&spr=https&st=2026-10-30T21%3A17%3A38Z&se=2026-10-30T22%3A17%3A38Z&sr=c&sp=r&sig=1iBX%2Bkpr0Y9cpy7v7vLarTFvWCuk7iEEJcinShQSgHM%3D)or the **Hold** soft key during an active call.

To resume the call, do one of the following:

- If there is only one call on hold, press![](https://cdn.us.document360.io/ed04ecbf-0868-4e77-a11e-6df8b843143d/Images/Documentation/image-1657274447971.png?sv=2026-02-06&spr=https&st=2026-10-30T21%3A17%3A38Z&se=2026-10-30T22%3A17%3A38Z&sr=c&sp=r&sig=1iBX%2Bkpr0Y9cpy7v7vLarTFvWCuk7iEEJcinShQSgHM%3D)or tap the **Resume** soft key.
- If there is more than one call on hold, tap the call you want to resume, and then press![](https://cdn.us.document360.io/ed04ecbf-0868-4e77-a11e-6df8b843143d/Images/Documentation/image-1657274447971.png?sv=2026-02-06&spr=https&st=2026-10-30T21%3A17%3A38Z&se=2026-10-30T22%3A17%3A38Z&sr=c&sp=r&sig=1iBX%2Bkpr0Y9cpy7v7vLarTFvWCuk7iEEJcinShQSgHM%3D)or tap the **Resume** soft key.

## Transfer Calls

### Blind Transfer

1. Press![Yealink transfer button](https://cdn.us.document360.io/ed04ecbf-0868-4e77-a11e-6df8b843143d/Images/Documentation/Yealink%20transfer%20button.png?sv=2026-02-06&spr=https&st=2026-10-30T21%3A17%3A38Z&se=2026-10-30T22%3A17%3A38Z&sr=c&sp=r&sig=1iBX%2Bkpr0Y9cpy7v7vLarTFvWCuk7iEEJcinShQSgHM%3D)or tap the **Transfer** soft key during an active call. The call is placed on hold.
2. Enter the number to which you want to transfer the call.
3. Press![Yealink transfer button](https://cdn.us.document360.io/ed04ecbf-0868-4e77-a11e-6df8b843143d/Images/Documentation/Yealink%20transfer%20button.png?sv=2026-02-06&spr=https&st=2026-10-30T21%3A17%3A38Z&se=2026-10-30T22%3A17%3A38Z&sr=c&sp=r&sig=1iBX%2Bkpr0Y9cpy7v7vLarTFvWCuk7iEEJcinShQSgHM%3D)or tap **B Transfer**.

### Consultative Transfer

1. Press![Yealink transfer button](https://cdn.us.document360.io/ed04ecbf-0868-4e77-a11e-6df8b843143d/Images/Documentation/Yealink%20transfer%20button.png?sv=2026-02-06&spr=https&st=2026-10-30T21%3A17%3A38Z&se=2026-10-30T22%3A17%3A38Z&sr=c&sp=r&sig=1iBX%2Bkpr0Y9cpy7v7vLarTFvWCuk7iEEJcinShQSgHM%3D)or tap the **Transfer** soft key during an active call. The call is placed on hold.
2. Enter the number you want to transfer to, and then tap **Send**.
3. When the second party answers, press![Yealink transfer button](https://cdn.us.document360.io/ed04ecbf-0868-4e77-a11e-6df8b843143d/Images/Documentation/Yealink%20transfer%20button.png?sv=2026-02-06&spr=https&st=2026-10-30T21%3A17%3A38Z&se=2026-10-30T22%3A17%3A38Z&sr=c&sp=r&sig=1iBX%2Bkpr0Y9cpy7v7vLarTFvWCuk7iEEJcinShQSgHM%3D)or tap **Transfer** to complete the transfer.

### Direct to Voicemail Transfer

1. Press![Yealink transfer button](https://cdn.us.document360.io/ed04ecbf-0868-4e77-a11e-6df8b843143d/Images/Documentation/Yealink%20transfer%20button.png?sv=2026-02-06&spr=https&st=2026-10-30T21%3A17%3A38Z&se=2026-10-30T22%3A17%3A38Z&sr=c&sp=r&sig=1iBX%2Bkpr0Y9cpy7v7vLarTFvWCuk7iEEJcinShQSgHM%3D)or tap the **Transfer** soft key during an active call. The call is placed on hold.
2. Enter *90 followed by the number to which you want to transfer the call.
3. Press tap **B Transfer**.

## Forward Calls

1. Tap  when the phone is idle, and then tap **Features** > **Call Forward**.
2. Select the desired forward type:
  - **Always Forward** - Incoming calls are forwarded unconditionally.
  - **Busy Forward** - Incoming calls are forwarded when the phone is busy.
  - **No Answer Forward** - Incoming calls are forwarded if not answered after a period of time.
3. Enter the number you want to forward to. For **No Answer Forward**, tap the gray box of the **After Ring Time** field, and then tap the desired ring time to wait before forwarding.
4. Tap the **Save** soft key to accept the change.

## Make a Conference Call

1. Tap the **Conference** soft key during an active call. The call is automatically placed on hold.
2. Enter the number of the party you would like to conference in, and then tap **Conference**.
3. Tap the **Conference** soft key again when the other party answers. All parties are now joined in the conference.
4. Tap the **EndCall** soft key to disconnect all parties or to leave a three-way conference.
  1. You can split the conference call into two individual calls by pressing the **Split** soft key.

NotePressing **EndCall** in a *three-way* conference will not disconnect all parties. The other parties will remain connected.  
If you would like to end the call for all three-way parties, **Split** it into individual calls then **EndCall** each.

## Park Calls

**Call Park** allows you to place a call on hold so it can be retrieved from any other UCaaS phone in your building.

### Park a Call

To park a call:

1. Press **Transfer**. The call is automatically placed on hold.
2. Dial ***98**.
3. Press **Send** or wait.
4. You hear a message telling you the orbit number on which the call is parked and prompting you to complete the transfer. Press **Transfer** to complete.

### Pick Up a Parked Call

When you let a person know they have a parked call, you will need to tell them the orbit number on which the call is parked.

To pick up a parked call:

1. Go to any UCaaS phone in the building and dial *99 followed by the orbit number.

NoteIf you would like to use the call park feature and it is not activated on your phone, please contact your System Administrator.

## Access and Use Call History

You can view a list of up to 100 missed, placed, received, and forwarded call records.

1. Press the **History** soft key when the phone is idle. Press  or  to scroll through the list.
2. Once an entry is highlighted, you can:
  - Press the **Send** soft key to call the entry.
  - Press the **Delete** soft key to delete the entry from the list.
  - Press the **Option** soft key to:
    - Select **Detail** to view detailed information about the entry.
    - Select **Add to Contact** to view detailed information about the entry.
    - Select **Add to Blacklist** to add the entry to the blacklist.
    - Select **Delete All** to delete all entries from the list.

## Access and Manage Contact Directory

### Add a Contact

1. Press the **Directory** soft key when the phone is idle, then select **All Contacts**.
2. Press the **Add** soft key to add a contact.
3. Enter a unique contact name in the **Name** field and contact numbers in the corresponding fields.
4. Press the **Save** soft key to accept the change.

### Edit a Contact

1. Press the **Directory** soft key when the phone is idle, then select **All Contacts**.
2. Press  or  to select the desired contact, press the **Option** soft key and then select **Detail** from the prompt list.
3. Edit the contact information.
4. Press the **Save** soft key to accept the change.

### Delete a Contact

1. Press the **Directory** soft key when the phone is idle, then select **All Contacts**.
2. Press  or  to select the desired contact, press the **Option** soft key and then select **Delete** from the prompt list.
3. Press **OK** soft key when the LCD screen prompts, "Delete selected item?"

## Change Ring Tones

AlertChanges to ring tones made through your phone's menu will be reset to the default each evening. If you would like to customize the ring tone on your phone, please reach out to your System Administrator.

## Configure Available Phone Keys

Available phone keys set as speed dials, one-touch transfer buttons, etc. are managed by your System Administrator or through the User Portal.

## Access (Star) Codes

| **Access Code** | **What it Does** | **Available in Feature Package** | **Notes** |
| --- | --- | --- | --- |
| ***53** | Directed Call Pickup | All except Prime | Dial *53 followed by the extension of a ringing phone to pick it up. |
| ***54** | Group Call Pickup | All except Prime | Dial *54 to pick up a call ringing on a phone that is a member of a Call Pickup Group of which your phone is a member. Call Pickup Groups are set up by your System Administrator. |
| ***62** | Enable Busy Call Forwarding | All except Pro and Executive | Extensions assigned a Pro or Executive Feature Package, are forwarded using the **Reach Me** function in the User Portal and not access (star) codes. |
| ***63** | Disable Busy Call Forwarding | All except Pro and Executive | Extensions assigned a Pro or Executive Feature Package, are forwarded using the **Reach Me** function in the User Portal and not access (star) codes. |
| ***69** | Automatic Recall | All | Plays an announcement of the number of the last call received. |
| ***72** | Enable Unconditional Call Forward | All except Pro and Executive | Extensions assigned a Pro or Executive Feature Package, are forwarded using the **Reach Me** function in the User Portal and not access (star) codes. |
| ***73** | Disable Unconditional Call Forward | All except Pro and Executive | Extensions assigned a Pro or Executive Feature Package, are forwarded using the **Reach Me** function in the User Portal and not access (star) codes. |
| ***92** | Enable Call Forwarding on No Answer | All except Pro and Executive | Extensions assigned a Pro or Executive Feature Package, are forwarded using the **Reach Me** function in the User Portal and not access (star) codes. |
| ***93** | Disable Call Forwarding on No Answer | All except Pro and Executive | Extensions assigned a Pro or Executive Feature Package, are forwarded using the **Reach Me** function in the User Portal and not access (star) codes. |
| ***98** | Call Park | All | Press **Transfer** followed by *98 to park a call. Call Park is enabled by your System Administrator. |
| ***99** | Retrieve Parked Call | All | Press *99 followed by the Park Orbit to retrieve a parked call. Call Park is enabled by your System Administrator. |
| ***318** | Voicemail | All |  |