Congratulations on your purchase of the Uniden TRU548 cordless telephone
and answering system. This phone is designed and engineered to exacting
standards for reliability, long life, and outstanding performance utilizing
the latest in 2.4 GHz Spread Spectrum technology.
Note: Some illustrations in this manual may differ from the actual
unit for explanation purposes.
Features
• 2.4 GHz Spread Spectrum Technology
• Secure Digital Transmission
• Integrated Answering Device
• Caller ID and Call Waiting Caller ID
• Advanced Caller ID with Call Waiting Options
• 50 Number Caller ID Memory
• 20 Number Memory
• 3 Line, 16 Character Backlit Handset Display
• 3 Redial Memories (up to 32 digits)
• Flash and Pause
• Pulse / Tone Dialing
• 10 Day Standby Battery Life
• 6 Hour Talk Time
• Handset Earpiece and Ringer Volume Control
• Base Speakerphone
• 3-Way Conference Operation
• Bilingual Language, option
The TRU548 features include AutoTalk™ and AutoStandby™. AutoTalk allows
you to answer a call by just removing the handset from the base so you
don’t have to waste time pushing buttons or flipping switches. AutoStandby
allows you to hang up by simply returning the handset to the base.
Digital Spread Spectrum Technology utilizes a “wider frequency band” vs.
a “single narrow band” used in standard digital transmissions. The 2.4 GHz
frequency range was recently released to commercial communications. The
result is a more secure conversation with the clarity of digital sound,
extended range, and minimal interference from other cordless phones.
To protect you against misbilled calls which might result from your phone
being activated by other equipment, the TRU548 has Random Code™ digital
security which automatically selects one of over 65,000 digital security
codes for the handset and base. Also, the AutoSecure™ feature
electronically locks your phone when the handset is in the base.
Be sure to visit our web site: www.uniden.com
Uniden® is a registered trademark of Uniden America Corporation.
AutoTalk, AutoStandby, Random Code, and AutoSecure are trademarks of Uniden America
Corporation.
Contents
Welcome/Featuresiv
Controls and Functions2
Getting Started
Read this first4
Step 1: Checking the package contents5
Step 2: Setting up the phone6
Step 3: Installing the battery pack7
Step 4: Setting Caller ID options/Language13
Basics
Making and receiving calls15
Terminology16
Adjusting the volume17
Redialing a call18
Tone dialing switch-over19
Traveling out-of-range20
Selecting a different channel20
Page20
3-way conferencing21
Flash and call waiting21
Memory Dialing
Storing phone numbers and names22
Steps for entering names and special characters 24
Making calls with memory dialing26
Chain dialing27
Editing a stored name and/or phone number28
Erasing a stored name and phone number30
Caller ID Features
Caller ID31
When the telephone rings31
Viewing the Caller ID Message list32
Deleting information from the Caller ID list33
Using the Caller ID list34
Call Waiting Features36
The Integrated Answering Device
Features37
Turning the answering system on/off38
Setting up your answering system38
Using your answering system42
Additional Information
Changing the digital security code47
Installing the beltclip48
Headset installation48
Note on power sources49
Maintenance49
Troubleshooting50
General Information52
Technical Information53
Precautions & Warranty55
Index57
Controls and Functions
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
1. Handset antenna
2. Headset jack cover
3. Handset battery compartment
4. Handset earpiece
5. LCD display
6. Memory key
7. Talk key
8. Vol (volume)/▼(cursor down) key
9.*/(left cursor)/tone key
10. Redial/p (redial/pause) key
11. Options key
12. Handset microphone
13. Vol (volume)/▲(cursor up) key
14. Flash key
15. Cid (Caller ID) key
16. #/(right cursor) key
17. Delete key
18. Select/Channel key
19. Handset charging contacts
CONTROLS AND FUNCTIONS[ 2 ]
20
21
22
23
24
25
26
27
42 43 44 45
28
29
30
31
32
33
34
35
36
37
38
39
40
41
20. Base Retainer
21. Pin Set Key
22. Clock Set Key
23.(Delete) Key
24.(Repeat) Key
25. Voice Memo Key
26.(Answer On/Off) Key
27. Base Charging Contacts
28. Base Speaker
29. Base Antenna
30. Spekaer LED
31.(Volume Up) Key
•
32.(Volume Down) Key
ª
33.(Speaker) Key
34.(Play/Stop) Key
35. Status LED
36.(Skip) Key
37. Greeting Key
38.(Page/find) key
39. Record Time Switch
40. Ring Time Switch
41. Base Microphone
42. Base Ringer Switch
43. Pulse-Tone Switch
44. DC Power Input
45. Phone Jack
CONTROLS AND FUNCTIONS
[ 3 ]
Read This First
This cordless telephone must be set up before use. Follow these steps:
Step 1 (page 5)
Unpack the telephone and accessories.
Step 2 (page 6)
Next, choose the best location to
set up the base unit.
Base unit
Step 3 (page 7 to 10)
Then, insert the battery pack into the
handset. You must charge the battery
pack for 15-20 hours before
plugging into the phone line and
using the phone.
Step 4 (page 13 to 14)
Finally, set the Caller ID options and
store your area code in the memory to
use the Caller ID service.
Note: Skip the area code setting if your
calling area requires 10-digit dialing.
GETTING STARTED[ 4 ]
Handset
Handset
About the digital security code
This cordless telephone uses a
digital security code to prevent
unauthorized access to your base
unit. This security code prevents
other cordless handsets from making
calls through your base unit.
A random security code will be
assigned automatically between
your base unit and handset when
you charge the battery pack for the
first time.
If you want to reset the security
code, see page 47.
Checking the Package Contents
Make sure you have received the following items in the package.
If any of these items are missing or damaged, contact the Uniden Parts
Department (see below).
GETTING STARTED
• Base unit• Handset• AC adapter (AD-313)
• Telephone line cord
• Beltclip
• Wall mount adapter
Uniden Parts Department
(800) 554-3988
Hours: M-F 7:00 AM to 5:00 PM CST.
We can also be reached on the web at www.uniden.com
• Rechargeable
battery pack
(BT-800)
Also included:
• This Owner’s Manual
• Quick Reference Guide
• Registration Card
GETTING STARTED
[ 5 ]
Setting Up the Phone
Do the following steps:
A. Choose the best locationC. Connect the base unit
B. Install the battery packD. Choose the dialing mode
A. Choose the best location
Before choosing a location for your new phone, read the “Installation Considerations”
included in the “Precaution & Warranty”. Here are some important guidelines you should
consider:
Avoid noise sources such as a window
Avoid heat sources, such as
radiators, air ducts, and sunlight
Avoid television sets and
other electronic equipment
• The location should be close to both a phone jack and a continuous power outlet which is
not switchable.
• Keep the base and handset away from sources of electrical noise such as motors and
fluorescent lighting.
• Be sure there is sufficient space to raise the base antenna to a vertical position.
• The base can be placed on a desk, tabletop, or mounted on a standard wall plate.
GETTING STARTED[ 6 ]
B. Installing the Battery Pack
Charge the battery pack for at least 15-20 hours before
plugging the telephone jack and start using your phone.
1 Press in on the battery cover release and slide the
cover down until it comes off.
2 Connect the battery pack connector with the correct
polarity (black and red wires) to the jack inside of the
battery compartment.
Do not exert any force on this connection. It could
cause damage to the battery or to the handset. The
plastic connectors will fit together in only one way.
Once you are certain that you have made a good
connection, then insert the battery pack into the
battery compartment. Do not pinch the wires.
3 Securely close the battery compartment cover by
sliding it up until it snaps into place.
4 Place the handset on the base. Remove the beltclip, if
attached, for face up charging.
BATTERY PLUG-IN
DIRECTION
BLACK RED
GETTING STARTED
Use only the Uniden
Battery (BT-800)
supplied with your
phone.
Replacement batteries
are also available
through the Uniden
Parts Department (See
page 5).
GETTING STARTED
[ 7 ]
Battery use time (per charge)
From fully charged
• 6 hours continuous use
• 10 days when the handset is in the standby mode
• Even when the battery
pack is not being used,
it will gradually
discharge over a long
period of time. For
optimum performance,
be sure to return the
handset to the base
unit after a telephone
call.
• If you must replace the
battery pack during a
telephone call,
complete the
replacement of the
battery pack within 30
seconds, and you can
return to the original
call.
Low Battery Alert
When the battery pack is very low and needs to be
charged, the phone is programmed to eliminate functions
in order to save power. If the phone is not in use, “
Battery
If the phone is in use, “
” appears on the LCD and none of the keys will operate.
Low Battery” flashes and the handset beeps.
Low
Complete your conversation as quickly as possible and return the
handset to the base unit for charging.
The last number dialed in the redial memory, the names and the
numbers stored in the memory locations are retained for up to 2
minutes while you replace the battery pack.
Cleaning the Battery Charging Contacts
To maintain a good charge, it is important
to clean the battery contacts on the handset
and base unit with a dry cloth or a pencil
eraser about once month.
Do not use any liquids or solvents.
GETTING STARTED[ 8 ]
C. Connect the base unit
1 Connect the AC adapter to the DC IN 9V
jack and to a standard 120V AC wall outlet.
2 Set the base on a desk or tabletop, and
place the handset on the base unit as
shown. Remove the beltclip, if attached,
for face up charging. (See “Mounting the
Base Unit on a Wall”, on page 11.)
3 Then raise the antenna to a vertical
position.
4 Make sure that the status LED lights. If the LED does not
light, check to see that the AC adapter is plugged in and
that the handset makes good contact with the base
charging contacts.
• Use only the supplied AD-313 AC adapter. Do not use any other AC adapter.
• Connect the AC adapter to a continuous power supply.
• Place the base unit close to the AC outlet so that you can unplug the AC adapter easily.
• After installing the battery pack in the handset, charge
your handset at least 15-20 hours before plugging intothe phone line. Once the handset battery pack is fully
charged, connect the telephone line cord to the base and
telephone wall outlet.
5 Connect the telephone line cord to the TEL
LINE jack and to a telephone outlet once
the handset is fully charged.
GETTING STARTED
The handset can be
placed up or face
down in the base for
charging.
Place the power cord
so that it does not
create a trip hazard
or where it could
become chafed and
create a fire or
electrical hazard.
If your telephone outlet isn't modular, contact your telephone company
for assistance.
GETTING STARTED
[ 9 ]
D. Choose the dialing mode
Most phone systems use tone dialing which sends DTMF tones through the
phone lines. However some phone systems still use pulse dialing such as in
rural areas. The default setting is tone dialing. Depending on your dialing
system, set the mode as follows:
If your dialing system isSet the switch to
ToneTONE
PulsePULSE
•If you are not sure of your dialing system, set for tone dialing. Make a trial
call. If the call connects, leave the setting as is, otherwise set for pulse
dialing.
• If your phone system requires pulse dialing and you need to send the DTMF
tones for certain situations during a call, you may “switch-over” to tone
dialing. (Refer to “Tone Dialing Switch-over” on page 19.)
GETTING STARTED[ 10 ]
Mounting the base unit on a wall
Setting the handset retainer clip for wall mounting
11
On the base unit, pull the handset retainer out of the
slot. Rotate it clockwise 180 degrees.
22
Flip the retainer from front to back. Slide it back into
the slot so that the lip of the retainer is up and the oval
is down. The retainer holds the handset in place.
GETTING STARTED
Standard wall plate mounting
This phone can be mounted on any standard telephone wall plate.
11
Snap the wall mount adapter into the notches on
the base.
22
Plug the AC adapter to the
DDCCIINN99VV
jack. Route the
AC adapter cord inside the molded wiring channel as
shown.
33
Plug the AC adapter into a standard 120V AC wall
outlet.
44
Plug the telephone line cord into the
TTEELLLLIINNEE
the cord inside the molded wiring channel as shown.
55
Plug the telephone line cord into the telephone outlet.
66
Raise the antenna to a vertical position.
77
Align the mounting slots on the base with the mounting
posts on the wall. Push in and down until the phone is
firmly seated.
1
jack. Route
5
3
6
2
4
7
7
GETTING STARTED
Do not use an outlet
controlled by a wall
switch.
[ 11 ]
Direct wall plate mounting
If you don’t have a standard wall plate, you can mount
your phone directly to the wall. Before doing this,
consider the following:
• Avoid electrical cables, pipes, or other items behind
the mounting location that could cause a hazard when
inserting screws into the wall.
• Try to mount your phone within 10 - 15 feet of a
working phone jack to avoid excessive cord lengths.
• Make sure the wall material is capable of supporting
the weight of the base and handset.
• Use #10 screws (minimum length of 1-3/8 inches) with
anchoring devices suitable for the wall material where
the base unit will be placed.
1 Insert two mounting screws into the wall, (with their
appropriate anchoring device), 1/8 inches apart. Allow
about 3/16 of an inch between the wall and
screwheads for mounting the phone.
2 Set the retainer clip if necessary.
3 Refer to steps 1 through 7 on page 11 to mount the
telephone.
GETTING STARTED[ 12 ]
Setting Caller ID Options/Language
There are three Caller ID setup options available: AutoTalk, CIDCW (Caller ID on
Call Waiting), and Area Code. (See page 14 for Area Code setup instructions.)
AutoTalk™ allows you to answer the phone without pressing thebutton.
If the phone rings when AutoTalk is on, simply remove the handset from the
base and the phone automatically answers the call. Or if the handset is not on
the base, press any key to answer the call. If the phone rings when AutoTalk is
off, you must pressto answer the call.
Caller ID on Call Waiting (CIDCW) performs the same as regular Caller ID on
a call waiting number. Call waiting options allow you to handle call waiting
calls in six different ways. (See page 36.)
You must subscribe to CIDCW from your local phone company in order to
use this feature. The Call Waiting options are a separate service available
through your phone company.
Language option can be used to choose the language of your display. You can
select either English or French.
To change your Caller ID options/Language:
1 Pressin the standby mode.
The following screen appears.
2 Useandor a number key (1-3) to move the pointer
3 To set up the language of your display, press or
4 After you have made your Caller ID selections, pressand return the
•
ª
to the selection that you would like to change.
Pressto toggle between “
For “
CIDCW”, choose “On”, “Off”, or “Opt” depending upon the type of
On” and “Off” for “Auto Talk”.
service to which you subscribe.
ª
the number key to move the pointer to “Language”.
Pressto select “
Eng” (English) or “Fr.”
(French).
handset to the base.
GETTING STARTED
GETTING STARTED
[ 13 ]
If your calling area
requires 10-digit dialing,
do not program this
option.
Entering Your Area Code
If you enter a 3-digit area code number in the Area Code option, your local
area code does not appear in Caller ID messages. Do not program this option,
if your calling area requires 10-digit dialing.
When reviewing Caller ID messages, you will see only the local seven digit
number. For calls received from outside your local area code, you will see a
full 10-digit number.
1 When the phone is in the standby mode, press.
The Caller ID setting screen appears.
2 Pressto select “
Area Code” or press.
ª
3 Press .
4 Use the number keypad (to) to enter the 3-digit area code.
5 Press . A tone sounds and the displayed area code is entered.
6 Pressto complete the setting or return the handset to the base. The
handset returns to the standby mode.
When the area code has already been stored in memory, the stored
area code will be displayed. To change it, use theand
number keypad to enter the new area code. Then press
To complete the setting, pressor return the handset to the
base unit.
GETTING STARTED[ 14 ]
.
Making and Receiving Calls
From the handset
To answer
a call
To make
a call
To hang up
Handset
On the Base
Pick up the handset (AutoTalk)
or pick up the handset and
press .
1)Pick up the handset.
2)Press .
3)Listen for the dial tone.
4)Dial the number.
OR
1)Pick up the handset.
2)
Dial the number, then press.
Press , or return the handset
to the base (AutoStandby).
Handset
Off the Base
Press any key (Any Key Answer).
1)Press .
2)Listen for the dial tone.
3)Dial the number.
OR
Dial the number, then press.
Press .
Refer to page 13 “Setting
Caller ID Options/
Language” to turn on
Auto Talk feature if
desired.
BASICS
BASICS
[ 15 ]
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