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Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Ringer Tone and Volume. . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Setting the Handset Earpiece Volume . . . . . . . . . . . . . . . . . 8
Included with Your EXP 7900 Series Phone . . . . . . . 3 EXP 7903/7904 Charging Cradle . . . . . . . . . . . . . . . . 8
Controls and Functions. . . . . . . . . . . . . . . . . . . . . . . . 4 Using Your Phone . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Making and Receiving Calls. . . . . . . . . . . . . . . . . . . . . . . . . 9
• Charging the Battery Pack . . . . . . . . . . . . . . . . . . . . . . . . . . 5 • Storing a Number in Memory . . . . . . . . . . . . . . . . . . . . . 9
Charging the Handset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 • Entering a Pause in Memory Dialing . . . . . . . . . . . . . . . . 9
Low Battery Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 • Storing Mixed Tone/Pulse Numbers . . . . . . . . . . . . . . . . 9
Cleaning the Battery Contacts . . . . . . . . . . . . . . . . . . . . . . . 5 • Dialing a Stored Number . . . . . . . . . . . . . . . . . . . . . . . . 10
• Selecting a Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 • One-Touch Dialing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
• Setting the Dial Mode Switch . . . . . . . . . . . . . . . . . . . . . . . . 5 • Chain Dialing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
• Desk or Tabletop Installation . . . . . . . . . . . . . . . . . . . . . . . . 6 • Erasing a Stored Number. . . . . . . . . . . . . . . . . . . . . . . . 10
• Wall Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 • Replacing a Stored Number . . . . . . . . . . . . . . . . . . . . . . 10
Setting the Handset Retainer for Wall Mounting . . . . . . . . 6
• Selecting a Different Channel . . . . . . . . . . . . . . . . . . . . 10
Mounting on a Standard Wall Plate . . . . . . . . . . . . . . . . . . 6
• Using the Flash Button . . . . . . . . . . . . . . . . . . . . . . . . . 10
Mounting Directly on a Wall . . . . . . . . . . . . . . . . . . . . . . . . 7
• Using the Page/Find Feature . . . . . . . . . . . . . . . . . . . . . 10
Setting Up Your Phone . . . . . . . . . . . . . . . . . . . . . . . . 8
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
• Raising the Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
• Adjusting Ringer/Volume Controls. . . . . . . . . . . . . . . . . . . . 8 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Introduction
The Uniden® EXP 7900 Series 900 MHz cordless phones are The EXP 7900 Series features include AutoTalk and AutoStandby.
designed and engineered to exacting standards for reliability, long AutoTalk allows you to answer a call by just removing the
life, and outstanding performance. handset from the base so you don’t have to waste time pushing
buttons or flipping switches. AutoStandby allows you to hang up
▼ Features by simply returning the handset to the base.

• 900 MHz Extended Range Technology The EXP 7902/7904’s Voice Scramble protects your privacy by
• 40 Channel Autoscan scrambling any call you make or receive. The RF signal between
• 10-Number Memory Dialing the handset and the base are changed, making it difficult for
someone to clearly intercept your phone calls.
• 3 “One-Touch Priority” Keys
• Desk or Wall Mountable The UltraClear Plus true compander circuitry virtually eliminates
• Tone/Pulse Dialing background noise. This innovative technology, together with 40
• Handset Volume Control different channels, provides you with the best possible reception
• 32 Digit Redial during all your conversations.
• Page/Find To protect you against misbilled calls which might result from
• AutoTalk™ your phone being activated by other equipment, the EXP 7900
• AutoStandby™ Series has Random Code™ digital security which automatically
selects one of over 65,000 digital security codes for the handset
• 7 Hours Talk Time
and base. Also, the AutoSecure™ feature electronically locks your
• Hearing Aid Compatible phone when the handset is in the base.
• Charging Cradle (EXP 7903/7904 only)
• Voice Scramble (EXP 7902/7904 only) To get the most from your phone, please read this owner’s manual
thoroughly. Also, be sure to complete the product registration form
and mail it in.

Be sure to visit our web site at: www.uniden.com.

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Included with Your EXP 7900 Series Phone

talk batt lo

talk flash
mem

status
1 2 abc 3 def
900 MHz page/find
4 ghi 5 jkl 6 mno
7pqus 8 tuv 9wxyz
tone
8 oper
redial pause chan volume

m1 m2 m3

Base Handset Rechargeable Battery

AC Adapter Telephone Cord EXP7903/7904 Only:

Charging Cradle and Power
Supply

Also included:
• This Owner’s Manual
• Other Printed Material
• Precautions and Important Safety Instructions

If any of these items are missing or damaged, contact the Uniden Parts Department at (800) 554-3988,
8:00 a.m. To 5:00 p.m. Central, Monday through Friday, or contact us on the web at www.uniden.com.

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Controls and Functions

1. talk - answers or places calls
2. */tone - switches to tone dialing in pulse dial mode
3. redial - redials the last number
4. pause - adds a timed pause in a memory dialing sequence
5. talk/batt - LED indicates when phone is in use or the
battery is low
6. flash - accesses call waiting (if available)
7. mem - enters or recalls numbers in memory
8. volume - sets both the ringer and earpiece volumes
9. chan - selects another channel for clearer reception
10. m1, m2, m3 - accesses stored numbers in memory locations
talk batt
5 1, 2, and 3 for one-touch dialing
talk flash

1 6
mem

11. handset retainer - holds handset in base for

7 wall mounting.
1 2 abc 3 def
4 ghi 5 jkl 6 mno 12. status LED - indicates the phone is in use or the handset
7 pqrs 8 tuv 9 wxyz
is charging
2 tone
0oper 13. page/find - locates the handset
3 redial pause chan volume
8
4 m1 m2 m3
9
10

11

status
12
900 MHz page/find

13

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Installation
Charging the Battery Pack ▼ Low Battery Indicator
The rechargeable Nickel-Cadmium battery pack must be fully When the battery pack in the handset
charged before using your phone for the first time. Before is low and needs to be charged, the
plugging the phone line into your new phone, you must batt LED flashes every 3 seconds. talk batt
charge the battery for approximately 15-20 hours
without interruption. If this occurs while you are on the talk
mem
flash
phone, you will hear an alert tone.
1. Remove the handset battery cover. Complete your call as quickly as
possible, and return the handset to
2. Plug the battery’s the base for charging.
cable into the handset
and place the battery 2
1
pack inside the ▼ Cleaning the Battery Contacts
battery compartment.
To maintain a good
charge, it is important
to clean all battery
3 contacts on the handset
and base about once a Contacts
month. Use a pencil eraser
The plastic connectors will fit together only one or other contact cleaner.
way. Make sure the battery’s connector is Do not use any liquids
or solvents.
NOTE properly aligned. Use only the Uniden battery
pack (model BT-905).

Selecting a Location
3. Replace the battery cover.
Before choosing a location for your new phone, read the
▼ Charging the Handset “Installation Considerations” included in the “Precautions and
Important Safety Instructions” brochure.
Place the handset on the
base to charge. (The
handset can charge in Important: Do not place the power cord in an
either the face-up or
face-down position.)
! area where it may create a trip hazard or
become chafed and create a fire or
electrical hazard.

Setting the Dial Mode Switch

Place the switch in the

T position for tone dialing, or
the P position for
pulse dialing.

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Desk or Tabletop Installation 2. Flip the retainer over so

the tab is facing up.
1. Plug the AC adapter cord into the 9V DC input jack on
the base.

2. Wrap the AC adapter cord inside the molded strain-relief.

3. Slide the retainer back
1 3 onto the base.

▼ Mounting on a Standard Wall Plate

2
5
4 The phone is designed to be mounted on a standard AT&T or GTE
wall plate.

1. Plug the AC adapter into the base.

2. Place the AC adapter cord inside the left molded channel

cord holder.
6
3. Plug a short telephone cord into the TEL LINE jack on
the base.
7
3. Plug one end of the long telephone cord into the TEL LINE
jack on the base.
1 3

4. Place the telephone cord into the right molded channel

cord holder.
5
5. Plug the other end of the telephone cord into the telephone 2
wall jack. (Remember, the phone must be fully charged 4
before you can use it.)
4
6. Plug the AC adapter into a standard 120V AC wall outlet that is
not controlled by a wall switch.

! Use only the AC adapter that came with

the phone. 6

7. Raise the antenna on

the base.
4. Place the telephone cord into the right molded channel
cord holder and plug the other end of the cord into the wall
jack. (Remember, the phone must be fully charged before
you can use it.)

5. Place the base on the two posts of the wall plate and slide
Wall Installation downward to secure.

▼ Setting the Handset Retainer for Wall Mounting 6. Plug the AC adapter into a standard 120V AC wall outlet that is
not controlled by a wall switch.
1. Remove the handset
retainer on the base by
sliding it upward. ! Use only the AC adapter that came with
the phone.

7. Raise the antenna on the base.

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▼ Mounting Directly on a Wall 3. Place the AC adapter cord inside the left molded channel
cord holder.
If you do not have a standard wall plate, you can mount the
phone directly on a wall. Before mounting your cordless 4. Plug one end of the long telephone cord into the TEL LINE
telephone, consider the following: jack on the base.
Select a location away from electrical cables, pipes, or other items 5. Place the telephone cord into the right molded channel
behind the mounting location that could cause a hazard when cord holder.
inserting screws into the wall.
6. Place the base on the screws and push down until it’s
Make sure the wall material is capable of supporting the weight of
firmly seated.
the base and handset; otherwise, damage to the unit could result.

Use #10 screws with anchoring devices suitable for the wall 7. Plug the other end of the telephone line into the telephone
material where the base will be placed. wall jack. (Remember, the phone must be fully charged
before you can use it.)
1. Insert the screws, with their appropriate 3/16 in.

anchoring devices, 3 5/16 inches apart. 8. Plug the AC adapter into a standard 120V AC wall outlet that is
Allow 3/16 of an inch between the wall not controlled by a wall switch.
and screw heads for mounting the phone.

3 15/16 in.
! Use only the AC adapter that came with
the phone.

9. Raise the antenna on the base.

2. Plug the AC adapter into the base.

2
8 4

6 3
5

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Setting Up Your Phone

Raising the Antenna 2. The phone has two ringer tones, each with two volume levels.
Press volume again until you hear the ringer tone and
Before using your phone, be sure to raise its antenna to the volume level you want.
vertical position.
▼ Setting the Handset Earpiece Volume
Adjusting Ringer/Volume Controls
1. While you are on a call, press volume .
▼ Ringer Tone and Volume
2. The phone has two receiver volume levels, one soft and one
1. While the phone is not in use, press volume . loud. Press volume again until you hear the volume level
you want.

EXP 7903/7904 Charging Cradle

The extra charging cradle is not a replacement for the base. Put it 3. Plug the AC adapter into a standard 120V AC wall outlet that is
in a different room than the base so you can conveniently not controlled by a wall switch.
recharge the phone in the second location.
4. Place the handset upright in
Example: You want to use your cordless phone in the kitchen (an the charging cradle. (The
area of high interference). Connect the base in a room with low handset can be placed in the
interference (without appliances, televisions or computers) then charger with the keypad
put the charging cradle in the kitchen. facing either the front or back
of the charging cradle.)

1. Plug the charging cradle

AC adapter connector The charge LED lights while
into the DC input jack the unit is charging.
on the back of the
charging cradle.

2. Wrap the AC adapter cord

around the strain relief.
charge LED
Set the cradle on a
flat surface.

The charging cradle does not reset the digital

!
NOTE security code (refer to page 2.)
Use only the AC adapter that came with the
charging cradle.

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Using Your Phone

Making and Receiving Calls
Handset on Base Handset off Base
When the phone rings, remove the handset from the base. Press any key.
Answer call
(AutoTalk)
1. Remove the handset from the base and press talk. 1. Pick up the handset and press talk.
2. The talk LED lights. 2. The talk LED lights.
Make call
3. Listen for the dial tone. 3. Listen for the dial tone.
4. Dial the number. 4. Dial the number.
Hang up Return handset to the base. (AutoStandby) Press talk.
1. Remove the handset from the base and press talk. 1. Pick up the handset and press talk .
Redial 2. Listen for the dial tone. 2. Listen for the dial tone.
3. Press redial to dial the number. 3. Press redial to dial the number.

Storing a Number in Memory To use this function, follow steps 1 and 2 in “Storing a Number
in Memory,” then press the pause button on the handset to place
Your EXP 7900 Series phone has 10 memory locations for storing a pause in the phone number sequence.
important telephone numbers.
Remember, the phone number you wish to
1. Remove the handset from the base and press mem. The talk store cannot have more than 16 digits,
LED flashes and you hear a beep. including the pause. (The pause button
NOTE
counts as one digit.)
2. Enter the phone number you want to store (up to 16 digits).
Follow the remaining steps in the “Storing a Number in Memory”
You have 20 seconds after pressing mem section to complete the operation.
to enter the number you wish to store.
NOTE Otherwise, an error tone will sound.
Storing Mixed Tone/Pulse Numbers
3. Press mem and enter a number (0-9) on the keypad for
the memory location you want to use. If your phone is set up for pulse dialing, you can store a mixed
mode number (up to 16 digits) to easily access long
You hear a long beep and the talk LED goes out indicating the distance services.
number has been stored successfully.
1. Remove the handset from the base and press mem. The talk
If you select any keys other than 0-9, the handset will beep LED flashes and you hear a beep.
rapidly and no number will be stored.
2. Enter the number to be dialed in pulse mode.

You cannot store numbers in m1, m2, or 3. Press the */tone button on the handset. The */tone button
NOTE m3. Refer to “One-Touch Dialing.” counts as one digit and enters a pause.

4. Enter the number(s) to be dialed in tone mode.

Entering a Pause in Memory Dialing 5. Press mem and a number (0-9) on the keypad for the
If you would like to use a phone number stored in memory to memory location you wish to use. You hear a long beep and
access voice mail, for example, you can store a pause in the phone the talk LED goes out.
number sequence.

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Dialing a Stored Number 3. Press the memory location number (0-9) you want to clear.
You hear a long beep confirming that you have erased
To dial a phone number stored in memory, press talk, then press the number.
mem and the memory location (0-9). Your phone will dial the
stored number.
Replacing a Stored Number
If you select a memory location that does
not have a stored number, the handset will Remember, your EXP 7900 Series phone has 10 memory
NOTE beep rapidly and the phone will not dial. locations, represented by the numbers 0-9 on the keypad. If you
store a phone number in one of these locations, then attempt to
store a different number in the same location later, the new
number will replace the previous one.
One-Touch Dialing
Your phone is equipped with three “One-Touch Priority” keys for
instant dialing (m1, m2, and m3). You cannot store phone Selecting a Different Channel
numbers directly into m1, m2, and m3. They are only used If you encounter interference while using your phone, you can
to dial phone numbers stored into memory locations 1, 2, and 3 manually change the phones channel for clear operation.
on the keypad. Interference can come from appliances or other phones in your
home. This function works only when the phone is in use.
1. To instantly dial phone numbers stored in memory locations
1, 2, or 3, simply press m1, m2, or m3. (There is no need to
The chan button on the handset allows you to choose between 40
press talk, the phone will automatically dial.) factory set channels. During the course of a conversation, if you
hear static or noise which makes it difficult to hear, press chan.
2. If no phone number was stored in memory locations 1, 2, or 3
The talk LED flashes, indicating the phone is changing to
on the keypad, pressing m1, m2, or m3 will do nothing. another channel.

Chain Dialing Using the Flash Button

After dialing a number you may be requested to enter a special
access code, for example, when performing a banking transaction. Use flash for accessing services such as call waiting. If you receive
a call during your conversation, press the flash button on the
1. Store the access code into one of the memory locations (0-9). handset. Press flash again to return to the previous call.

2. Dial the main number.

Using the Page/Find Feature
3. Press mem and the memory location of the access code at the
appropriate time. The Page/Find feature sends a signal from the base to the handset
causing it to beep. This is useful for locating the handset when it
is away from the base. To use this feature, press page/find on the
Erasing a Stored Number base. The handset beeps for 60 seconds. (Press and hold the
page/find button to get a continuous beep.)
1. Remove the handset from the base.
The paging feature does not work when
2. Press mem twice. the phone is in use.
NOTE

On the handset press talk to end the page. Press talk again if you
do not wish to make a call.

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Troubleshooting
If your EXP 7900 Series cordless telephone is not performing to your expectations, please try these simple steps. If you are still unable to
resolve the problems, contact your place of purchase or call customer service at (800) 297-1023.

Caution: Do not attempt to service this unit yourself. Servicing must be performed by qualified personnel.

Problem Suggestion

Charge light won’t come on when • Make sure the AC adapter is plugged into the base and wall outlet.
handset is placed in base. • Make sure the handset is properly seated in the base.
• Make sure the rechargeable battery pack is properly connected in the handset.
• Make sure that the charging contacts on the handset and on the base are clean.

The audio sounds weak and/or scratchy. • Make sure that the base antenna is in the vertical position.
• Move the handset and/or base to a different location away from metal objects or
appliances and try again.

Can’t make or receive calls. • Check both ends of the telephone line cord.
• Make sure the AC adapter is plugged into the base and a wall outlet.
• Disconnect the AC adapter for a few minutes, then reconnect it.
• Place the handset back on the base for a few seconds.
The status LED will blink indicating that the phone has been reset.

Handset doesn’t ring or receive a page. • The Nickel-Cadmium battery pack may be weak.
Charge the battery for 15-20 hours.
• The handset may be too far away from the base.
• Place the base away from appliances or metal objects.
• Place the handset back on the charging cradle for a few seconds.
The status LED will blink indicating that the phone has been reset.

Specifications
General
Frequency Control Phase Locked Loop
Modulation FM
Operating Temperature -10° to 50° C, 14° to 122° F

Base
Transmit Frequency 925.997 ~ 927.947 MHz (40 Channels)
Power Requirements 9V 210mA (from AC adapter)
Size 4.53 in. W X 2.17 in. D X 8.82 in. H
Weight Approximately 12 oz.

Handset
Transmit Frequency 902.052 ~ 904.002 MHz (40 Channels)
Size 2.28 in. W X 1.73 in. D X 7.09 in. H
Weight Approximately 8.9 oz.

Battery
Capacity 600 mAH, 3.6V
Talk Mode 7 hours
Standby Mode 14 days
Specifications shown are typical and subject to change without notice.

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Back Cover

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