Yealink T48 Guide

Yealink T48U

A guide to using your phone with Cloud Voice

Contents

What’s in the box? 3

Let’s get started 4

Check you’re set up on Cloud Voice 7

Getting to know your phone 8

Phone display 10

Using your phone 12

General information 16

What’s in the box?

We’re here to help you get the best out of your new phone.

Just follow the instructions below. Here’s what you should find

when you open the box.

Got everything?

• Phone stand

• Handset cord

• Ethernet cable (2m CAT5E UTP cable)

• Quick start guide

• Mains power adapter (optional)

• Wall mount bracket (optional)

• Yealink T48U IP phone and handset

Phone stand

Wall mount bracket

(optional)

Handset cord Ethernet cable Quick start guide

Power adapter

(optional)

Yealink T48U IP phone and handset

45°40°

A B

Let’s get started

Set up your phone

Once you’ve unpacked it, turn your phone upside down so

you can see the ports. Then slot the phone stand into one

of the slots, depending on the angle you want, or into the

optional wall mount bracket. Wall mount method (optional)

A. Upper USB port

B. Lower USB port

Get connected

Here’s how to connect the handset and optional headset.

Here’s how to connect a USB flash drive.

Here’s how to connect the network and power.

You have two options for power and network

connections, normal AC power (A) and

Power over Ethernet (PoE) (B). Your system

administrator will let you know which one to use.

(A) AC power (optional)

To connect the AC power:

• Connect the DC plug on the power adapter to

the DC5V port on the phone, and plug in the

other end of the power adapter to the mains.

• Connect your included Ethernet cable

between the internet port on the phone and

your switch/hub device port.

(B) Power over Ethernet

You can power the T48 using the included

Ethernet cable from a PoE-compliant switch

or hub.

To connect PoE:

• Connect the Ethernet cable between the

internet port on the phone and an available

port on the in-line power switch/hub.

• If an in-line power switch/hub is provided,

you don’t need to connect the phone to the

power adapter. Make sure the switch/hub is

PoE-compliant. The phone can also share

the network with another network device

such as a PC. This is an optional connection.

Important: Do not unplug or remove power

to the phone while it's updating its firmware

and configurations.

AC Power option

PC connection

(optional)

Power adapter

(DC 5V)

PC Internet DC5V

PoE (Power over Ethernet) option

PC connection

(optional)

IEEE 802.3.af compliant

PoE Hub/Switch

PC Internet DC5V

Your phone comes with everything you need to

get set up on Cloud Voice.

Once your phone’s connected to the

network, it’ll update its firmware. This

might take some time, so please be

patient. Once it’s finished, it’ll show

this symbol:

If something has gone wrong, you’ll

see this symbol:

If this happens, just give us a call

on 0800 389 0537 and we’ll be able

to help.

Once everything is updated and

ready to go, your Cloud Voice number

will show on the screen, like this:

Check you’re set

up on Cloud Voice

Getting to know

your phone

Phone features and keys

1 Power indicator

2Touch screen

3Headset key

4Mute key

5 Hold key

6 Transfer key

7Speakerphone key

8Message key

9Redial key

Arrows: scroll display information

OK: confirm action

X: cancel action

11 Volume key

12 Keypad

13 Speaker

14 Hook switch tab

15 Hook switch

1 2 3

654

7 8 9

HEADSET

MESSAGE

REDIAL TRANSFER

HOLD

MUTE

Understanding the icons on the T48U

Icon Description Icon Description Icon Description

Wired network is unavailable Multi-lingual lowercase letters input mode Placed calls

Wired network is unreachable Multi-lingual uppercase letters input mode Missed calls

Wi-Fi connection is successful Alphanumeric input mode Forwarded call

Wi-Fi connection is unreachable Numeric input mode Always forward

Wi-Fi connection fails Multi-lingual uppercase and lowercase letters

input mode Busy forward

Bluetooth mode is on Voicemail No answer forward

Bluetooth headset is both paired and connected Text message Direct pick up

Bluetooth-enabled mobile phone is both

paired and connected Auto Answer Group pick up

Registered successfully Do Not Disturb Transfer

Registration failed Phone warning Recall

Registering Call hold Conference

Call forward is enabled on this line Keep mute Speed dial

Hands-free speakerphone mode Ringer is silent Directory

Handset mode Phone lock Hot desking

Headset mode Received calls Phone lock

Idle status

Your Yealink T48U has a touch screen. Simply touch the

icon or menu on the screen to access the feature. Once your

phone has started up successfully, you’ll see its idle status.

Here’s what it should look like.

Phone display

2 4

5 5

No Name Description

1Status bar Displays the phone's default account, icons and the time

and date.

2Default account

Displays the number of the default account to the left of

the status bar. If multiple numbers are registered, tap and

select the one you want.

3Icons Icons are displayed in the middle of the status bar.

4Time and date The phone's time and date are displayed on the right of

the status bar.

5Line keys (1-11)

The idle screen shows up to 11 line keys. You can use those

numbered 1-6 on the left of the screen to activate up to

six lines. You can also assign these features; they’ll display

their numbers and feature status.

6DSS key Gives you quick access to the line key screen. Tap each

line key to configure them.

7Wallpaper Shows your chosen wallpaper, which you can customise.

8Call window Displays call information.

9Shortcut keys

tap this to enter the History screen and view

call history.

tap this to enter the Directory screen and view

call history.

tap this to toggle the DND mode or enter the

custom DND configuration screen.

tap this to enter the main menu.

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