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
2

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
3

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)
4

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.
5

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
A
PoE (Power over Ethernet) option
B
PC connection
(optional)
IEEE 802.3.af compliant
PoE Hub/Switch
PC Internet DC5V
6

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
7

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
10
Arrows: scroll display information
OK: confirm action
X: cancel action
11 Volume key
12 Keypad
13 Speaker
14 Hook switch tab
15 Hook switch
2
1 2 3
OK
654
7 8 9
#0
*
HEADSET
MESSAGE
REDIAL TRANSFER
HOLD
MUTE
1
11
10
12
13
15
14
4
3
7
5
8
9
6
8

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
9

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
1
9
3
8
2 4
5 5
7
6
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.
10