RCA 25403/04 User manual

4-Line Intercom Speakerphone
User’s Guide
Please read this manual before
operating this product for the
first time.
TOCOM 16247500
Model 25403/04

2
Important Information
NOTICE: This product meets the applicable Industry Canada technical specifications.
The equipment must be installed using an acceptable method of connection. The customer should be aware that compliance with the above conditions may
not prevent degradation of service in some situations.
Repairs to certified equipment should be made by an authorized Canadian maintenance facility designated by the supplier. Any repairs or alterations made by
the user to this equipment, or equipment malfunctions, may give the telecommunications company cause to request the user to disconnect the equipment.
Users should ensure for their own protection that the electrical ground connections of the power utility, telephone lines and internal metallic water pipe
systems, if present, are connected together. This precaution may be particularly important in rural areas.
CAUTION: Users should not attempt to make such connections themselves, but should contact the appropriate electric inspection authority, or electrician, as
appropriate.
NOTES: This equipment may not be used on coin service provided by the telephone company.
Interference Information
This equipment generates and uses radio frequency energy which may interfere with residential radio and television reception if not properly
installed and used in accordance with instructions contained in this manual. Reasonable protection against such interference is ensured,
although there is no guarantee this will not occur in a given installation. If interference is suspected and verified by switching this equipment
on and off, the user is encouraged to try to correct the interference by one or more of the following measures: Reorient the radio/television
receiver’s antenna, relocate the equipment with respect to the receiver, plug the equipment and receiver into separate circuit outlets. The user
may also wish to consult a qualified radio/television technician for additional suggestions. This equipment has been fully tested and complies
with all limits for Class B computing devices pursuant to part 15 FCC Rules and Regulations. This apparatus does not exceed the class B limits
for RF noise emissions specified in the RFI regulations of the Industry Canada.
Important Information
INDUSTRY CANADA NUMBER IS LOCATED ON THE CABINET BOTTOM
REN NUMBER IS LOCATED ON THE CABINET BOTTOM

3
SEE MARKING ON BOTTOM / BACK OF PRODUCT
RISK OF ELECTRIC SHOCK
DO NOT OPEN
WARNING: TO
PREVENT FIRE OR
ELECTRICAL SHOCK
HAZARD, DO NOT
EXPOSETHIS
PRODUCT TO RAIN
OR MOISTURE.
THE LIGHTNING
FLASH AND ARROW
HEAD WITHIN THE
TRIANGLE IS A
WARNING SIGN
ALERTING YOU OF
“DANGEROUS
VOLTAGE” INSIDE
THE PRODUCT.
CAUTION: TO REDUCE THE
RISK OF ELECTRIC SHOCK, DO
NOT REMOVE COVER (OR
BACK). NO USER
SERVICEABLE PARTS INSIDE.
REFER SERVICING TO
QUALIFIED SERVICE
PERSONNEL.
THE EXCLAMATION
POINT WITHIN THE
TRIANGLE IS A
WARNING SIGN
ALERTING YOU OF
IMPORTANT
INSTRUCTIONS
ACCOMPANYING
THE PRODUCT.
CAUTION:
Table of Contents
IMPORTANT INFORMATION ........................................................2
IMPORTANT INFORMATION ............................................................................ 2
INTERFERENCE INFORMATION ........................................................................ 2
INTRODUCTION.......................................................................5
CONNECTIONS & SETUP ..........................................................6
PARTS CHECKLIST ...................................................................................................6
TELEPHONE JACK REQUIREMENTS .............................................................................6
BASE LAYOUT .........................................................................................................7
IMPORTANT INSTALLATION INFORMATION ......................................................... 8
IMPORTANT INSTALLATION GUIDELINES......................................................................8
INSTALLING THE PHONE ...........................................................................................9
DATA PORT ............................................................................................ 12
SYSTEM VERIFICATION .............................................................................. 12
OTHER SYSTEM PHONES ...................................................................................... 13
PROGRAMING THE TELEPHONE .................................................................... 13
LANGUAGE .......................................................................................................... 13
RINGER TONE ...................................................................................................... 13
PRIORITY LINE ..................................................................................................... 14
DELAY RING ........................................................................................................ 15
PHONE ID .......................................................................................................... 15
PHONE NAME ..................................................................................................... 16
INTERCOM AUTO ANSWER.................................................................................... 16
FLASH TIME ........................................................................................................ 17
CALL ALERT TONE ............................................................................................... 17
NOUNKNOWN/BLOCKED (NOT APPLICABLE TO MODEL 25403.)........................... 18
DISPLAY CONTRAST .............................................................................................. 18
LOCAL AREA CODE (NOT APPLICABLE TO MODEL 25403.) .................................... 19
REGIONAL AREA CODES (NOT APPLICABLE TO MODEL 25403.)............................. 19
MANUALLY SETTING THE TIME AND DATE .............................................................. 20
HOUR FORMAT .................................................................................................... 21
RESTORING THE DEFAULT SETTINGS ....................................................................... 21
OPERATION........................................................................ 22
BASIC OPERATION ................................................................................... 22
MAKING CALLS WITH THE HANDSET ..................................................................... 22
MAKING CALLS WITH THE SPEAKERPHONE............................................................. 22
MAKING CALLS WITH THE OPTIONAL HEADSET ...................................................... 23
PRE-DIALING ....................................................................................................... 23
ANSWERING CALLS .............................................................................................. 23
SWITCHING BETWEEN THE SPEAKERPHONE, HANDSET, AND HEADSET ...................... 24
MUTE ................................................................................................................. 24
DONOT DISTURB................................................................................................ 25
HOLD.................................................................................................................. 25
Placing a Call on Hold ........................................................................................ 25
Releasing a Call..................................................................................................... 25

Table of Contents
FLASH ................................................................................................................. 26
REDIAL................................................................................................................ 26
REVIEWING THE REDIAL NUMBERS ....................................................................... 26
TRANSFERRING ACALL TO ANOTHER STATION ........................................................ 26
RECEIVING ATRANSFERRED CALL FROM ANOTHER STATION .................................... 27
MESSAGE WAITING (NOT APPLICABLE TO MODEL 25403.) ................................... 27
PRIVACY.............................................................................................................. 27
Providing Privacy ................................................................................................. 27
VOLUME.............................................................................................................. 28
Ringer Volume....................................................................................................... 28
Speakerphone, Handset, and Headset Volume ........................................... 28
CONFERENCE CALLS ............................................................................................. 28
INTERCOM CALLS ..................................................................................... 29
ONE -TOUCH INTERCOM ...................................................................................... 29
ANSWERING AN INTERCOM CALL .......................................................................... 29
INTERCOM HOLD ................................................................................................. 30
INTERCOM CONFERENCE CALLS............................................................................. 30
PAGING ALL STATIONS ......................................................................................... 31
CALLER ID (CID) ................................................................................... 31
SUMMARY SCREEN .............................................................................................. 31
RECEIVING AND STORING CID RECORDS............................................................... 32
REVIEWING CID RECORDS ................................................................................... 32
SAVING ACID RECORD TO THE INTERCOM/MEMO LOG OR TO PHONE
BOOK MEMORY ............................................................................................. 32
DIALING BACK .................................................................................................... 33
IFYOU PROGRAMMED YOUR LOCAL AREA CODE ........................................... 33
DELETING ACID RECORD .................................................................................... 33
DELETING ALL CALL RECORDS .............................................................................. 33
IFYOU DID NOT PROGRAM YOUR LOCAL AREA CODE .......................................... 34
CALL WAITING CALLER ID........................................................................ 34
MEMORY LOG AND PHONE BOOK (DIRECTORY) MEMORY ............................. 34
STORING ANUMBER AND NAME IN MEMORY ...................................................... 34
MEMORY .......................................................................... 35
REVIEWING PHONE BOOK (DIRECTORY) MEMORY ................................................. 35
REVIEWING THE MEMO LOG (MEMORY LOCATION MEMORY)................................... 36
EDITING ANAME OR NUMBER STORED IN PHONE BOOK (DIRECTORY) MEMORY .... 36
EDITING ANAME OR NUMBER STORED IN AMEMO LOG (MEMORY LOCATION) ..... 36
STORING THE LAST NUMBER DIALED..................................................................... 36
STORING APAUSE IN MEMORY ............................................................................ 37
DIALING ASTORED NUMBER ................................................................................ 37
MEMORY DELETE/CLEAR ...................................................................................... 37
CLEAR ALL MEMORIES ........................................................................................ 38
CHAIN DIALING ................................................................................................... 38
OTHER INFORMATION........................................................... 39
DISPLAY MESSAGES ............................................................................................. 39
OPERATION BYBATTERY ...................................................................................... 40
OPERATION WITHOUT POWER ................................................................................ 40
TROUBLESHOOTING GUIDE .......................................................................... 40
GENERAL PRODUCT CARE .......................................................................... 42
TELEPHONE NETWORK INFORMATION............................................................ 43
REN NUMBER ....................................................................................... 43
SERVICE................................................................................................. 44
ACCESSORY ORDER FORM ......................................................................... 45
INDEX .............................................................................. 46

5
Introduction
CAUTION: When using telephone equipment, there are basic safety instructions that should always be followed. Refer to the IMPORTANT SAFETY
INSTRUCTIONS provided with this product and save them for future reference.
Your Four-Line Speakerphone is a full-featured phone ideally suited for home-office use. It is designed to receive calls on up to four
incoming telephone lines and to serve up to 16 station users. Your phone features 16 memory locations, 94 phone book memories, hold,
conference call, intercom, call transfer, Caller ID display, and speakerphone capabilities.
This telephone is designed to be simple to use, however, you can reach its full potential more quickly by taking a few minutes to read this
user’s guide.
IMPORTANT: In order to use all of the features of this unit, you must subscribe to either the standard Name/Number Caller ID Service or Call Waiting Caller ID Service.
To know who is calling while you are on the phone, you must subscribe to Call Waiting Caller ID Service.
NOTE: FEATURES AND OPERATIONS PERTAINING TO CALLER ID DO NOT APPLY TO Model 25403.

6
Connections & Setup
Telephone Jack Requirements
To use this phone, you will need an RJ11C (CA11A) (for a single line) or a RJ14C (CA14A)
(for two lines) type modular phone jack, which might look like the one pictured here,
installed in your home. If you don’t have either modular jack, call your local phone
company to find out how to get one installed.
VERY IMPORTANT: In order to achieve full system operation (i.e. intercom, page, etc.), Line 1 must be
connected and must be common to all phones connected to the system. Only other 25403 or 25404
models are compatible for full system operation. Connecting phones other than the 25403/25404 to
Line 1 may inhibit the intercom and paging operations.
For proper operation of intercom, page function, etc., DO NOT connect a DSL modem to Line 1.
To transfer a call from one station to another, the two stations should be connected to the same line.
Base Handset Handset cord Line cords AC power supply
Modular
telephone
line jack
Wall plate
DELETE EXIT SELECT/SAVE DIAL
STORE
MENU
DIRECTORY
NEWMESSAGE
INTERCOM
CONFER
LINE4
LINE3
LINE2
LINE1
PRIVACY
PAGE
TRANSFER
PAUSE
REDIAL
VOLUME
FLASH HANDSET SPEAKER MUTE HOLD
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
INTERCOM/MEMORYLOG
MEM.
MEM.
MEM.
MEM.
MEM.
MEM.
MEM.
MEM.
MEM.
MEM.
MEM.
MEM.
MEM.
MEM.
MEM.
MEM.
INT.
INT.
INT.
INT.
INT.
INT.
INT.
INT.
INT.
INT.
INT.
INT.
INT.
INT.
INT.
INT.
REVIEW
PQRS
7
TUV
8
WXYZ
9
GHI
4
JKL
5
MNO
6
1
ABC
2
DEF
3
TONE
*
OPER
0
#
Parts Checklist
Make sure your package includes the following items:

7
Connections & Setup
DELETE EXIT SELECT/SAVE DIAL
STORE
MENU
DIRECTORY
NEW MESSAGE
INTERCOM
CONFER
LINE 4
LINE 3
LINE 2
LINE 1
PRIVACY
PAGE
TRANSFER
PAUS E
REDIAL
VOLUME
FLASH HANDSET SPEAKER MUTE HOLD
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
INTERCOM/MEMORYLOG
MEM.
MEM.
MEM.
MEM.
MEM.
MEM.
MEM.
MEM.
MEM.
MEM.
MEM.
MEM.
MEM.
MEM.
MEM.
MEM.
INT.
INT.
INT.
INT.
INT.
INT.
INT.
INT.
INT.
INT.
INT.
INT.
INT.
INT.
INT.
INT.
REVIEW
PQRS
7
TUV
8
WXYZ
9
GHI
4
JKL
5
MNO
6
1
ABC
2
DEF
3
TONE
*
OPER
0
#
MEMORY buttons
DIRECTORY button
MENU button
STORE button
DIAL button
CONFER button
LINE 2 button
LINE 1 button
HOLD button
MUTE button
SPEAKER button
HEADSET button
FLASH button
VOLUME button
PAUSE/REDIAL button
TRANSFER button
PAGE button
PRIVACY button
DELETE button
EXIT button
REVIEW button SELECT/SAVE button
LINE 4 button
LINE 3 button
INTERCOM button
Base Layout
NEW MESSAGE indicator (Not applicable to model 25403)

8
Connections & Setup
Important Installation Information
•Never install telephone wiring during a lightning storm.
• Never install telephone jacks in wet locations unless the jack is specifically designed for wet locations.
•Never touch non-insulated telephone wires or terminals, unless the telephone line is disconnected from the network.
•Use caution when installing or modifying telephone lines.
•Temporarily disconnect any equipment connected to the phone such as faxes, other phones, or modems.
Important Installation Guidelines
• Install telephone near both a telephone (modular) jack and an electrical power outlet.
•Avoid sources of noise, such as a window by a busy street, and electrical noise, such motors, microwave ovens, and fluorescent lighting.
•Avoid heat sources, such as heating air ducts, heating appliances, radiators, and direct sunlight.
•Avoid areas of excessive moisture or extremely low temperature.
•Avoid dusty locations.
•Avoid other cordless telephones or personal computers.
CAUTION: Always disconnect all phone cords from the base unit before battery installation or replacement.

9
Connections & Setup
Installing the Phone
The phone may be connected to two 2-line (RJ14C) wall jacks or four single line (RJ11C)
wall jacks to accomodate all four lines.
1. Choose an area near an electrical outlet and telephone wall jack. Your phone should be
placed on a level surface, such as a table top or desk.
2. Install 3 AA-size alkaline batteries (not included) for back up power in the event of a
power failure.
•Use a screwdriver to loosen and lift up the battery compartment door located on
the bottom of the phone.
•Insert the batteries as shown on the diagram inside the battery compartment.
•Snap the battery compartment door back into place and tighten the screw.
NOTE: If the low battery icon appears in the display, you need to replace the batteries. It is important
that you replace them as soon as possible to maintain unit operation when electrical power is off. As a
precaution, you may want to write down any stored information you do not want erased.
IMPORTANT: If you are not going to use the telephone for more than 30 days, remove the batteries
because they can leak and damage the unit.

10
3. Plug the AC power supply cord into an electrical outlet and the DC connector into the back of the base.
CAUTION: Use only the ATLINKS USA 5-2495 power supply that is compatible with this unit. Using other power supplies may
damage the unit.
4. Connect the telephone line cords:
If you have two dual line wall jacks installed in your home/office, plug one end of the straight telephone line
cord tagged as "LINE 1+2" into the jack marked LINE 1 + 2 and one end of the other straight line cord into the
other jack on the back of the base. Plug the other end of each line cord into the dual-line wall jacks.
Connections & Setup
LINE 1 + 2
LINE 3 + 4

11
NOTE: To use four lines, you must have four telephone lines with unique telephone numbers. If you only have one telephone line, this
phone will still operate, but only as a single line telephone.
Unit Initialization:
After you connect the power supply and Line 1 to the unit, the system automatically searches for and sets up a
phone ID. To set your own Phone ID, or change your phone ID, follow the steps in the Phone ID section.
You may connect up to 16 RCA 25404 and/or RCA 25403 phones to the system at one time. Features like
intercom, page and call transfer may be used among the units, but Line 1 must be common for all 25404 or
25403 units for these features to work properly. You may choose to share or privatize lines 2, 3 and 4.
Connections & Setup
If you have four single-line wall jacks installed in your home/office, you must use adapters/couplers (not
included) to combine the four single telephone lines into two dual lines. The adapter/coupler may look similar to
the one pictured here and can be purchased from your local telephone products retailer.
Adapter/coupler LINE 1 + 2
Adapter/coupler LINE 3 + 4

12
Connections & Setup
5. Connect the handset cord:
Connect one end of the coiled handset cord to the jack on the side of the base and the other end into the jack in the handset, and place
the handset in the cradle.
6. Check for a dial tone:
Lift the handset and listen for a dial tone. If you hear a dial tone, the phone is properly installed.
Data Port
This phone has a data port jack to connect an auxiliary phone device, such as a fax machine, computer modem, answering machine, or even a
cordless phone.
The data port switch on the back of the phone controls the data port jack so you can choose line 1, line 2, line 3, or line 4.
Use the data port to hook up your fax machine, for example, and then set the data port switch to line 4 in order to receive faxes on the
phone number for line 4.
If you are talking to someone on line 4 and want that person to fax something to you, change the data port switch to line 2 or line 3, and
give the person on-line the phone number for line 2 or line 3. Your fax machine now can receive calls on line 2, line 3, or line 4.
IMPORTANT: Be sure to switch the fax machine back to the normal line when you are done because outside callers who do not know that you have switched lines will
not be able to reach your fax machine if they dial the line 4 number.
System Verification
Use the following procedures to test system configuration and identify possible line connection errors. The phone must be connected to the
power outlet, Line 1 must be connected to the LINE 1 + 2 jack, and the phone must have a phone ID.
VERY IMPORTANT: In order to achieve full system operation (i.e. intercom, page, etc.), Line 1 must be connected and common to all phones on the system. Only other
25403 or 25404 models are fully compatible.

13
Connections & Setup
Other System Phones
1. Press LINE 1.
2. Look at all the other stations. If they all indicate line 1 is being used, the connection is correct.
OR
1. Press the INTERCOM button. The display shows INTERCOM and ENTER CALLING PHONE ID.
2. Enter a phone ID by pressing an Intercom/Memo Log button (1-16). The display shows the phone ID you entered. If the phone ID you
entered is connected to the system, you will hear a ring back tone (call through tone) at your phone. If the phone ID is not connected to
the system, you will hear an error tone. NO ANSWER shows in the display and intercom is cancelled.
Programing the Telephone
This telephone has several programmable functions.
Language
Set the display language to show messages in either English, Spanish, or French.
1. Press the MENU button while in standby mode. The cursor in the display points to SET LANGUAGE.
2. Press the SELECT button.
3. Use the REVIEW < or > button to scroll to English, Espanol, or Francais. The default is English.
4. Press the SELECT button to save.
Ringer Tone
The ringers for all four lines may be set independent of one another.
1. Press the MENU button while in standby mode.
2. Use the REVIEW < or > button to scroll to SETPHONEOPTIONS.

14
Connections & Setup
3. Press the SELECT button.
4. Use the REVIEW < or > button to scroll to SETRING TONE.
5. Press the SELECT button. The ringer tone settings for each of the four telephone lines show in the display.
6. Use the REVIEW < or > button to scroll to through each ringer tone for LINE 1. A sample ringer tone is generated when you scroll to
individual ringer tones. Choose from eight different tones, or turn the ringer OFF.
NOTE: If you select OFF, the cursor automatically moves to the CID ON/OFF option. Use the REVIEW < or > button to select CID ON or OFF. (ON allows the unit to detect
and display CID records for the corresponding telephone line. OFF disables the function for the corresponding telephone.) Press the SELECT button.
NOTE: On model 25403, you cannot select CID ON/OFF.
7. Press the SELECT button to save. The cursor automatically moves to LINE 2.
8. Repeat steps 6 and 7 for each telephone line. After you select the ringer tone for LINE 4, press the EXIT button.
NOTE: The line indicators flash for incoming calls even if the ringer is disabled.
Priority Line
The priority line (one of the four lines) has to have precedence over the other three lines.
1. Press the MENU button while in standby mode.
2. Use the REVIEW < or > button to scroll to SETPHONEOPTIONS.
3. Press the SELECT button.
4. Use the REVIEW < or > button to scroll to SETPRIORITY LINE.
5. Press the SELECT button.
6. Use the REVIEW < or > button to scroll to 1, 2, 3, or 4. The default is LINE 1.
7. Press the SELECT button to save.

15
Connections & Setup
Delay Ring
Use this setting to delay the Central Office ring.
1. Press the MENU button while in standby mode.
2. Use the REVIEW < or > button to scroll to SETPHONEOPTIONS.
3. Press the SELECT button.
4. Use the REVIEW < or > button to scroll to SETDELAYRING.
5. Press the SELECT button.
6. Use the REVIEW < or > button to scroll to 0ring up to 10 rings.
7. Press the SELECT button to save.
Phone ID
1. Press the MENU button while in standby mode.
2. Use the REVIEW < or > button to scroll to SETPHONEOPTIONS.
3. Press the SELECT button.
4. Use the REVIEW < or > button to scroll to SETPHONEID.
5. Press the SELECT button.
6. Press the SELECT button again to automatically set the phone ID, or press any memory button (1-16) to assign a phone ID.
NOTE: The Phone ID (01-16) is unique. If you manually select a phone ID that belongs to another unit on the system, NOT AVAILABLE shows in the display. Press
SELECT or choose another memory button.

16
Connections & Setup
NOTE: If the phone cannot find an ID, determine if there are too many phones connected to the system. A maximum of 16 phones can be connected in the system at
one time.
NOTE: To changing a phone ID, press the SELECT button. Select the new ID by pressing the corresponding memory location button (1-16), or press the SELECT button
to automatically search for and set the ID. You may press the EXIT button at any time to exit , except after ID searching starts.
Phone Name
1. Press the MENU button while in standby mode.
2. Use the REVIEW < or > button to scroll to SETPHONEOPTIONS.
3. Press the SELECT button.
4. Use the REVIEW < or > button to scroll to SETPHONENAME.
5. Press the SELECT button.
6. Use the touch-tone pad to enter the phone name (up to 8 characters). More than one letter is stored in each of the number keys. For
example, to enter Bill Smith, press the 2 key twice for the letter B. Press the 4 key 3 times for the letter I. Press the 5 key 3 times for the letter
L. Press the 5 key 3 times for the second letter L, and press the 1 key to insert a space between the first and last name. Press the 7 key 4 times
for the letter S; press the 6 key once for the letter M; press the 4 key 3 times for the letter I; press the 8 key for the letter T; press the 4 key
twice for the letter H.
7. Press the SELECT button to save.
NOTE: The Phone Name and ID shows in the display when the phone is idle.
Intercom Auto Answer
For “hands-free” operation, the phone can be set to automatically answer an intercom call.
TIP: You may also use this feature for room monitoring.
1. Press the MENU button while in standby mode.
2. Use the REVIEW < or > button to scroll to SETPHONEOPTIONS.

17
Connections & Setup
3. Press the SELECT button.
4. Use the REVIEW < or > button to scroll to INTERCOMAUTOANS.
5. Press the SELECT button.
6. Use the REVIEW < or > button to choose YES or NO.
7. Press the SELECT button to save.
Flash Time
1. Press the MENU button while in standby mode.
2. Use the REVIEW < or > button to scroll to SETPHONEOPTIONS.
3. Press the SELECT button.
4. Use the REVIEW < or > button to scroll to SETFLASHTIME.
5. Press the SELECT button.
6. Use the REVIEW < or > button to scroll through the flash time options. You may choose 100ms or 600ms.
7. Press the SELECT button to save.
NOTE: You may press the EXIT button at any time to exit.
Call Alert Tone
Turn on the Call Alert to hear a tone for incoming calls while you are on the telephone.
1. Press the MENU button while in standby mode.
2. Use the REVIEW < or > button to scroll to SETPHONEOPTIONS.
3. Press the SELECT button.
4. Use the REVIEW < or > button to scroll to CALLALERTTONE.

18
Connections & Setup
5. Press the SELECT button.
6. Use the REVIEW < or > button to scroll to ON or OFF.
7. Press the SELECT button to save. The cursor automatically moves to LINE 2.
8. Repeat steps 6 and 7 for each telephone line. After you select a tone for Line 4, press the EXIT button.
No Unknown/Blocked (Not applicable to model 25403.)
This option allows you to decide whether the unknown or blocked caller ID calls are saved or not. If you select YES, the unknown or blocked
calls will be saved.
1. Press the MENU button while in standby mode.
2. Use the REVIEW < or > button to scroll to SETPHONEOPTIONS.
3. Press the SELECT button.
4. Use the REVIEW < or > button to scroll to NOUNKNOWN/BLOCKED.
5. Press the SELECT button.
6. Use the REVIEW < or > button to scroll to YES or NO. The default is YES.
7. Press the SELECT button to save.
Display Contrast
Adjust the display contrast to one of four contrast levels.
1. Press the MENU button while in standby mode.
2. Use the REVIEW < or > button to scroll to SETLCDCONTRAST.
3. Press the SELECT button. The MIN and MAX contrast scale shows on the display.
4. Use the REVIEW < or > button to adjust the contrast. The display instantly adjusts with each press of the < or > button.
5. Press the SELECT button to save the desired contrast level.

19
Connections & Setup
Local Area Code (Not applicable to model 25403.)
1. Press the MENU button while in standby mode.
2. Use the REVIEW < or > button to scroll to SETAREACODE.
3. Press the SELECT button.
4. Use the REVIEW < or > button to scroll to LOCAL AREA CODE.
5. Press the SELECT button. EnterNumber shows in the display.
6. Use the touch tone pad on your phone to enter your local area code.
7. Press the SELECT button to save.
NOTE: If you make a mistake, press DELETE to erase the wrong digit.
Regional Area Codes (Not applicable to model 25403.)
Depending on your location, you may need to set up to six regional area codes. Setting Regional Area Codes helps the phone
determine the number format to display when a valid CID record is received. Call records matching any of the set regional area
codes are displayed as 10 digits.
NOTE: If the CID telephone number does not display correctly, you may not be able to dial back the number from the Caller ID menu.
You may need to set regional area codes if you reside in an area which:
•uses multiple area codes
•uses overlapping area codes
•requires 10-digit dialing.
1. Press the MENU button while in standby mode.
2. Use the REVIEW < or > button to scroll to SETAREACODE.

20
Connections & Setup
3. Press the SELECT button.
4. Use the REVIEW < or > button to scroll to REGIONAL AREA CODES.
5. Press the SELECT button. All six regional area code fields and Enter Number show in the display.
6. Use the touch tone pad on your phone to enter up to six regional area codes.
7. Press the SELECT button to save.
NOTE: If you make a mistake, press the DELETE button to erase a wrong digit.
Manually Setting the Time and Date
The time and date is automatically set when you receive the first CID call. To manually reset the time and date, follow the steps below.
NOTE: Automatic time set is not applicable to model 25403.
1. Press the MENU button while in standby mode.
2. Use the REVIEW < or > button to scroll to SET TIME & DATE.
3. Press the SELECT button.
4. Use the REVIEW < or > button to scroll to SETCLOCK
5. Press the SELECT button, and the cursor moves to the hour field.
6. Use the REVIEW < or > button to button to select the hour.
NOTE: AM or PM will be set accordingly with selected hour
7. Press the SELECT button, and the cursor moves to the minute field.
8. Use the REVIEW < or > button to select the minutes.
9. Press the SELECT button, and the cursor moves to the month field.
10. Use the REVIEW < or > button to select the month.
11.Press the SELECT button, and the cursor moves to the date field.
Table of contents
Languages:
Other RCA Telephone manuals

RCA
RCA 25424RE1 - ViSYS Corded Phone User manual

RCA
RCA 25204RE1 - ViSYS Corded Phone User manual

RCA
RCA IP160 User manual

RCA
RCA IP060 User manual

RCA
RCA 1113 User manual

RCA
RCA 25424 User manual

RCA
RCA 25216RE1 User manual

RCA
RCA 25415RE3 - Business Phone Corded User manual

RCA
RCA 25425 User manual

RCA
RCA IP110 User manual