Product Support
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3-Handset Expandable Cordless Phone with Super Long Range, Bluetooth Connect to Cell, Smart Call Blocker and Answering System
IS8121-3
Manuals & Documentation
Frequently Asked Questions
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For message recording, your telephone has a Built-in answering system, and it also supports Voicemail service offered by your telephone service provider(subscription is required, and fee may apply).
The main differences between them are:
BUILT-IN ANSWERING SYSTEM VOICEMAIL SERVICE SUPPORTED BY Telephone system Telephone service provider SUBSCRIPTION No Yes FEES No May apply ANSWER INCOMING CALLS •After 3 rings by default.
•It can be changed via handset or the telephone base menu.•Usually after 2 rings.
•It can be changed by contacting your telephone service providerSTORAGE Telephone base Server or System DISPLAY NEW MESSAGE • Handset - XX new messages
• Telephone base - XX new messages• Handset - 
and New voicemail
• Telephone base -
RETRIEVE MESSAGES • Press PLAY/STOP on the telephone base; OR
• Press MENU, and then select Play messages on the handset; OR
•Access remotely with an access code• Press 
on the dialpad, and enter an access number from your telephone service provider.Based on the above information, if you want to...
Use the built-in answering system to record your messages
Your Voicemail service can bundle in your telephone plan. As such, you would need to contact your telephone service provider to disable it.
*TIP: Can I switch back to Voicemail service if I want to?
As long as your telephone plan includes the Voicemail service, you can still re-enable it through your service provider.Use the voicemail service to record your messages
Simply turn off the Built-in answering system at any time, and you can use the Voicemail service only.Use both the Built-in answering system and the Voicemail service to record messages
By default, the Voicemail service is usually set to answer after 2 rings, while your Built-in answering system is set after 3 rings. Please check with your telephone service provider to learn how to set your voicemail settings.Suggest to set your Built-in answering system to answer calls at least 2 rings earlier than your Voicemail service. In other words, if your answering system sets to answer after 3 rings (by default), then you need to set the Voicemail service to answer after 5 rings.
What happened is that if you on a call or the answering system is already recording, and you receive ANOTHER incoming call, then the third caller is able to leave a Voicemail message.
On the other hand, if you are not on a call nor the answering system is recording, the incoming caller can leave a message directly to the Built-in Answering system.
How to edit an entry in Call block?
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1. Press MENU/SELECT to enter the main menu when it is not in use.
2. Press ▲ or ▼ to scroll to Smart call blk, then press MENU/SELECT.
3. Press ▲ or ▼ to scroll to Block list, and then press MENU/SELECT.
4. Press MENU/SELECT to choose Review.
5. Press ▲ or ▼ to browse through the block entries.
6. When the desired entry displays, press MENU/SELECT. The screen displays Enter number along with the phone number to be edited.
7. To edit the number:
- Use the dialing keys to enter digits.
- Press ▲ or ▼ to move the cursor to the left or right.
- Press MUTE/DELETE on the handset to erase a digit.
- Press and hold MUTE/DELETE to erase all digits.
- Press and hold REDIAL/PAUSE to enter a three-second dialing pause (a P appears).8. Press MENU/SELECT to move on to the name. The screen displays Enter name along with the name to be edited.
9. To edit the name:
- Use the dialing keys to enter characters.
- Press ▲ or ▼ to move the cursor to the left or right.
- Press 0 to add a space.
- Press MUTE/DELETE to erase a character.
- Press and hold MUTE/DELETE to erase all characters.
- Press TONE* to change the next letter to upper or lower case.10. Press MENU/SELECT to save the entry.
How to save a call to block list?
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To save a call to block list:
1. When a handset is in idle mode, press CID to view the caller ID log in reverse chronological order starting with the most recent call.
-OR-
You can also review the caller ID log by pressing MENU/SELECT in idle mode, then press ▲ or ▼ to scroll to Caller ID log. Press MENU/SELECT twice to select Review.
2. Press ▲ or ▼ to scroll through the list. The handset beeps twice when you reach the beginning or end of the caller ID log.
3. When the desired entry appears, press MENU/SELECT .
4. Press ▲ or ▼ to highlight To Block list, and then
press MENU/SELECT . The screen displays Enter number.
5. Use the dialing keys to edit the number, if necessary. Press ▲ or ▼ to move the cursor to the left or right.
-Press MUTE/DELETE on the handset to backspace and erase a digit.
-Press and hold MUTE/DELETE on the handset to erase the entire entry.
-Press and hold REDIAL/PAUSE to insert a dialing pause (a P appears).
7. Press MENU/SELECT . The handset displays Enter name.
8. Use the dialing keys to edit the name.
-Press ▲ or ▼ to move the cursor to the left or right.
-Press 0 to add a space.
-Press MUTE/DELETE on the handset to erase a character.
-Press and hold MUTE/DELETE on the handset to erase all characters.
-Press TONE* to change the next letter to upper or lower case.
9.Press MENU/SELECT to confirm. You hear a confirmation tone.
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To delete an entry in block list:
1. Press MENU/SELECT to enter the main menu when it is not in use.2. Press ▲ or ▼ to scroll to Smart call blk, then press MENU/SELECT.
3. Press ▲ or ▼ to scroll to Block list, and then press MENU/SELECT.
4. Press MENU/SELECT to choose Review.
5. Press ▲ or ▼ to browse through the block entries.
6. When the desired entry displays, press MUTE/DELETE on the handset. The screen shows Delete entry?.
7. Press MENU/SELECT to confirm. The screen show Deleting.... You hear a confirmation tone. You cannot retrieve a deleted entry.
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Review block list:
1. Press MENU/SELECT to enter the main menu when handset is not in use.2. Press ▲ or ▼ to scroll to Smart call blk, then press MENU/SELECT.
3. Press ▲ or ▼ to scroll to Block list, and then press MENU/SELECT.
4. Press MENU/SELECT to choose Review.
5. Press ▲ or ▼ to browse through the block entries.
My telephone handset appears to be dead. What should I do?
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Tip 1 of 9
If your handset responds in any way (beeps, displays a message on the screen, etc.) then it is not dead. Please review the Frequently Asked Questions list to check for a more specific symptom to your problem.
A common cause for dead handset symptoms is a dead battery. We recommend that you initially charge the handset battery for 16 hours. If the handset does not hold a charge or seems dead, we suggest the following:
• Please verify that the handset battery(s) is securely plugged into the back of the handset.
• Check that there is power to the base and charger. If there is power and the handset is cradled face up, the CHARGE light on the handset will be on, and/or the battery icon will be displayed.
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Tip 2 of 9
Confirm proper installation of the telephone base power supply and handset battery. You should only use the VTech power supply provided with your telephone. Make sure the power supply is not connected to an electrical outlet that is controlled by a wall switch. Confirm that the electrical outlet that the telephone is plugged into is working. -
Tip 3 of 9
Make sure you are using the battery supplied with your phone. If you are replacing the battery and you need assistance, refer to our VTech Battery Finder. If a battery for your model is unavailable, you can search the internet using the key words cordless phone batteries for an on-line supplier. If you prefer to purchase locally, you can look for a replacement battery at your area consumer electronics retailers. It is recommended that you take your present battery with you to insure your replacement is the correct size and has the correct plug (where applicable) and specifications. -
Tip 4 of 9
When placing the handset in the base or charger, confirm that the charge contacts are making a good connection. The charging battery icon is displayed and, on selected models, the CHARGE light illuminates on the handset while it charges.
You should allow 16 hours to fully charge the handset battery. For optimum daily performance, return the handset to its telephone base or charger when not in use. -
Tip 5 of 9
Please make sure that the cords (power and telephone line) are plugged into the channels on the bottom of the base. If the cords are not properly installed, the base will not sit level and the phone may not charge properly. -
Tip 6 of 9
Dirty charge contacts on the telephone base and handset could prevent the batteries from charging. Clean the handset and base charge contacts using a pencil eraser or a cloth to eliminate deposit accumulation. -
Tip 7 of 9
Make sure that the battery cover is properly secured on the handset. If the battery cover is not correctly installed, it may prevent the handset from charging. -
Tip 8 of 9
Recradle the handset for 15 seconds, then try using it again. -
Tip 9 of 9
You may need to replace the rechargeable battery, especially if it has been in service for more than one year. To find a replacement, refer to our VTech Battery Finder. If a battery for your model is unavailable, you can search the internet using the key words cordless phone batteries for an on-line supplier. If you prefer to purchase locally, you can look for a replacement battery at your area consumer electronics retailers. It is recommended that you take your present battery with you to insure your replacement is the correct size and has the correct plug (where applicable) and specifications.
My speakerphone fades in and out. What can I do to fix this?
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Tip 1 of 4
Excessive background noise will cause a speakerphone to fade in and out. Try controlling the background noise by turning off any audio devices near the speakerphone. Also, try to avoid interrupting the person at the other end of the conversation while they are speaking. If background noise cannot be controlled, you should terminate speakerphone operation and return to normal handset mode. -
Tip 2 of 4
When using a speakerphone, you should be reasonably close to the base (or handset) in order to hear and be heard. The optimum distance will depend on room acoustics and noise levels. It is always a good idea to control ambient noise in your environment when using a speakerphone. -
Tip 3 of 4
When using the speakerphone, background noise can interfere with dialing as well as hearing the other party. Use the MUTE feature in the presence of background noise in your environment. -
Tip 4 of 4
When using a speakerphone, controlling background noise in your environment is essential. While you are listening to your party, press MUTE (or MUTE/DELETE) to temporarily turn the microphone off. When it is your turn to speak, remember to press MUTE again to turn the microphone on.
How do I set up my answering system?
- Set up Answering System through Voice Guide (Before use) After the Smart call blocker setting is done or skipped, the handset will then prompt if you want to set up the answering system. Press MENU/SELECT to start the answering system setup via voice guide. • To skip the set up, press OFF/CANCEL. This feature assists you to do the basic setup of the answering system. You can follow the voice guide to record your own announcement, set the number of rings and the message alert tone. You hear the voice prompt “ This voice guide will assist you with the basic setup of your answering system.” • Setup your answering system by inputting the designated numbers as instructed in the voice guide. Answering system settings Set your built-in answering system The answering system can record and store up to 99 messages. Each message can be up to 3 minutes in length. The total storage capacity for the announcement, messages and memos is approximately 22 minutes. The actual recording time depends on individual message characteristics. Messages remain available for replay until you delete them. If the answering system has less than 3 minutes of recording time left, “Less than 3 minutes to record” is announced before the message playback and Rec mem low appears on the handset screen. If the memory is full, the answering system announces, “Memory is full.” The number of messages and F flash, alternatively, in the message window, and Rec mem full appears on the handset screen. You must delete some messages before recording new ones. Your answering system allows you to set your announcement, to save and delete messages, activate call screening, to set number of rings before pick up, and to access remotely.
Why won’t my Answering System record any messages?
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Tip 1 of 8
Make sure your answering system is On. At the base, press ANS ON/OFF until you hear Calls will be answered and the button illuminates. -
Tip 2 of 8
If you subscribe to a distinctive ring service to identify certain callers, there may be an incompatability between the distinctive ring patterns and the answering system’s ability to answer at the designated number or rings. -
Tip 3 of 8
If you have voicemail service in addition to your answering system, your callers’ messages may be going into voicemail before your answering system picks up the call. Program your voicemail to pick up at least 2 rings greater than the number of rings your answering system is set to answer the call. -
Tip 4 of 8
The volume for your Telephone Answering System may be turned down too low to hear any recorded messages. Press ►/■ PLAY/STOP. While messages are playing, press VOL+ ▲ to turn up the volume. -
Tip 5 of 8
If an extension phone is picked up (goes off hook) while the answering system is recording a message, the recording will stop and the system will return to standby mode. In which case, there may be no message for that call. -
Tip 6 of 8
If you have more than one phone with an answering system, make sure that only one system is turned On. -
Tip 7 of 8
You may have a line problem. To test for a line problem, test your unit at another location such as your neighbor’s or relative’s house. If your unit works at another location, contact your local telephone company. -
Tip 8 of 8
If the phone is not responding normally, you may need to reset your telephone system. Complete the following steps to reset the telephone system:
Step 1: Disconnect the power to the telephone base.
Step 2: Disconnect the handset batteries.
Step 3: Wait a few minutes and then reconnect the power to the telephone base.
Step 4: Reconnect the handset batteries.
Step 5: Wait about one minute for the handsets to re-establish a link with the telephone base and then test the phone again.
NOTE: After resetting the telephone system, you will need to reset the clock. If the time is not set, you will hear Time and Day Not Set when you listen to messages.
NOTE: If you have caller ID service, the time will automatically be updated whenever caller ID information is delivered. However, since caller ID delivers the date, rather than the day, you must program the year once so the system can derive the day of the week.
Set date and time
Use one of your system handsets to set up your answering system. When the phone is not in use:
Step 1: Press MENU/SELECT.
Step 2: Press ▲ or ▼ until you highlight Set date/time, then press MENU/SELECT.
Step 3: Use the dialing keys (0-9) to enter the month, date and year, then press MENU/SELECT.
Step 4: Use the dialing keys (0-9) to enter the hour and minute. Press ▲ or ▼ to select AM or PM, then press MENU/SELECT.
Step 5: Press and hold OFF to return to the idle screen.
Why does the answering system say Time and Day not set before playing messages?
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Make sure you set the date and time including the year correctly; otherwise the answering system does not announce the correct day of the week for your recorded messages time stamp.
NOTE: If you have caller ID service, the time will automatically be updated whenever caller ID information is delivered. However, since caller ID delivers the date, rather than the day, you must program the year once so the system can derive the day of the week.
Set date and time
Use one of your system handsets to set up your answering system. When the phone is not in use:
Step 1: Press MENU/SELECT.
Step 2: Press ▲ ; or ▼ until you highlight Set date/time, then press MENU/SELECT.
Step 3: Use the dialing keys (0-9) to enter the month, date and year, then press MENU/SELECT.
Step 4: Use the dialing keys (0-9) to enter the hour and minute. Press ▲ or ▼ to select AM or PM, then press MENU/SELECT.
Step 5: Press and hold OFF to return to the idle screen.
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Tip 1 of 3
Make sure that the power cord is securely plugged into the base and electrical outlet. Make sure the electrical outlet is not controlled by a wall switch. -
Tip 2 of 3
The volume for your Telephone Answering System may be turned down too low to hear any recorded messages. Press ►/■ PLAY/STOP. While messages are playing, press VOL+ ▲ to turn up the volume. -
Tip 3 of 3
If the phone is not responding normally, you may need to reset your telephone system. Complete the following steps to reset the telephone system:
Step 1: Disconnect the power to the telephone base.
Step 2: Disconnect the handset batteries.
Step 3: Wait a few minutes and then reconnect the power to the telephone base.
Step 4: Reconnect the handset batteries.
Step 5: Wait about one minute for the handsets to re-establish a link with the telephone base and then test the phone again.
NOTE: After resetting the telephone system, you will need to reset the clock. If the time is not set, you will hear Time and Day Not Set when you listen to messages.
NOTE: If you have caller ID service, the time will automatically be updated whenever caller ID information is delivered. However, since caller ID delivers the date, rather than the day, you must program the year once so the system can derive the day of the week.
Set date and time
Use one of your system handsets to set up your answering system. When the phone is not in use:
Step 1: Press MENU/SELECT.
Step 2: Press ▲ or ▼ until you highlight Set date/time, then press MENU/SELECT.
Step 3: Use the dialing keys (0-9) to enter the month, date and year, then press MENU/SELECT.
Step 4: Use the dialing keys (0-9) to enter the hour and minute. Press ▲ or ▼ to select AM or PM, then press MENU/SELECT.
Step 5: Press and hold OFF to return to the idle screen.
The ringer on my phone is too loud or too soft. How do I adjust the ringer volume?
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Tip 1 of 2
To adjust the handset ringer volume, complete the following steps:
Step 1: With the handset in idle (off) mode, press MENU / SELECT; then press ▲ or ▼ on the NavKey until Ringers is highlighted.
Step 2: Press MENU / SELECT. Home volume is highlighted. Press MENU/SELECT again.
Step 3: Press ▲ or ▼ on the NavKey to sample each ringer volume for home line.press MENU / SELECT to save.
Step 4: Press and hold OFF/CLEAR to return to the idle screen.
NOTE: At the lowest setting, the ringer is OFF. -
Tip 2 of 2
To adjust the BASE ringer volume:
When the base is idle, please press the VOL + or VOL - on the base to adjust the volume.
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Tip 1 of 8
If you subscribe to DSL service for this telephone line, DSL filters must be plugged into EVERY phone jack that has a phone. The DSL signal can cause static/noise, squealing (similar to fax tones), caller ID disruption and other issues on your line. DSL filters block the high frequency DSL signals from being transmitted to the telephone. If you are not using the DSL filters provided by the telephone company, this will cause static/noise and possibly caller id issues on your phones.
In most cases, we recommend you connect the plug end of the DSL filter into the telephone jack, then connect a telephone cord between the filter and your phone.
Please contact your service provider to obtain DSL filters and installation information. -
Tip 2 of 8
Other electronic products (i.e., 802.11 wireless networking products, radios, radio towers, pager towers, cell phones, intercoms, room monitors, televisions, personal computers, kitchen appliances and other cordless phones) can cause interference with your cordless phone. Try installing your phone as far away as possible from these types of electronic devices. -
Tip 3 of 8
Move the closer to the base. The operating range may vary with environmental conditions and time of use. There may be places within your environment that a cordless device will not work well. If the problem only occurs in certain areas of your environment, you can conclude that there is nothing wrong with the headset. -
Tip 4 of 8
To get better reception, try moving the telephone base to higher location. Relocate telephone base near a window if using telephone outside. -
Tip 5 of 8
If your phone shares a power outlet with a modem, or if it is plugged in to a shared surge protector, try plugging the phone (or modem/surge protector) in at a different location. If this solves the problem, re-locate your phone or modem farther apart from one another, or use separate surge protectors. -
Tip 6 of 8
Disconnect all other equipment on the phone line, as the problem may be caused by a different product than your cordless phone system. Reconnect your equipment, one unit at a time, until you determine the cause of the problem. -
Tip 7 of 8
If you have connected this telephone to a phone jack that has not been used before, or that has not been used in sometime, there may be problems with this jack that you are not aware of. Use a telephone jack that you know is in proper working order. -
Tip 8 of 8
If the other phones in your home are having the issue, the problem could be related to the telephone wiring in your home, or with your local telephone service. Please call your service provider for further assistance.
How do I register a new accessory handset to the base?
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Add and register handset
When your handset is deregistered from the telephone base, follow the steps below to register it back to the telephone base.
NOTES
• Charge the new handset without interruption for at least 30 minutes before registering it to the telephone base.
• You cannot register a handset if any other system handset is in use.
To register a handset to the telephone base:.
1. Put the handset you wish to register on the telephone base cradle.
2. The handset shows Registering.... .If the registration is successful, the handset screen displays Registered and beeps. The handset is now registered with the telephone base.
If registration fails, Registration failed appears on the handset screen. The handset shows To register HS... see manual and the telephone base returns to idle mode. This may take up to five minutes to occur. Please start again from Step 1.
Why am I not receiving caller ID on my phone?
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Tip 1 of 5
Caller ID and Call Waiting ID are subscription services, available from most local telephone service providers. You must subscribe to these services in order for the features to work on your phone. Contact your local telephone service provider for more information.
In addition, your caller must be calling from an area that supports caller ID.
Both you and your caller’s telephone service provider must use compatible caller ID systems.
If you subscribe to DSL service for this telephone line, DSL filters must be plugged into EVERY phone jack that has a phone. The DSL signal can cause caller ID disruption, static, noise and other issues on your line. DSL filters block the high frequency DSL signals from being transmitted to the telephone. If you are not using the DSL filters provided by the telephone company, this will cause static/noise and possibly caller id issues on your phones.
In most cases, we recommend you connect the plug end of the DSL filter into the telephone jack, then connect a telephone cord between the filter and your phone.
Please contact your service provider to obtain DSL filters and installation information.
Caller ID and Call Waiting ID may not be available for every call. Common reasons are incompatibilities between your and your caller’s service, transmission errors and answering calls before the ID data is received. -
Tip 2 of 5
Caller ID data may not be displayed on your phone if you answer a call at or before the second ring. This would also apply to an answering device that "answers" the call at or before the second ring. -
Tip 3 of 5
If the other phones in your home are having the issue, the problem could be related to the telephone wiring in your home, or with your local telephone service. Please call your service provider for further assistance. -
Tip 4 of 5
Disconnect all other devices that have Caller ID capability. If the problem stops, there is an incompatability with one or more of your units. -
Tip 5 of 5
If the phone is not responding normally, you may need to reset your telephone system. Complete the following steps to reset the telephone system:
Step 1: Disconnect the power to the telephone base.
Step 2: Disconnect the handset batteries.
Step 3: Wait a few minutes and then reconnect the power to the telephone base.
Step 4: Reconnect the handset batteries.
Step 5: Wait about one minute for the handsets to re-establish a link with the telephone base and then test the phone again.
NOTE: After resetting the telephone system, you will need to reset the clock. If the time is not set, you will hear Time and Day Not Set when you listen to messages.
NOTE: If you have caller ID service, the time will automatically be updated whenever caller ID information is delivered. However, since caller ID delivers the date, rather than the day, you must program the year once so the system can derive the day of the week.
Set date and time
Use one of your system handsets to set up your answering system. When the phone is not in use:
Step 1: Press MENU/SELECT.
Step 2: Press ▲ or ▼ until you highlight Set date/time, then press MENU/SELECT.
Step 3: Use the dialing keys (0-9) to enter the month, date and year, then press MENU/SELECT.
Step 4: Use the dialing keys (0-9) to enter the hour and minute. Press ▲ or ▼ to select AM or PM, then press MENU/SELECT.
Step 5: Press and hold OFF to return to the idle screen.
How do I download my cell phone’s directory to my cordless phone?
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Download a cell phonebook.
Step 1: Press MENU/SELECT on the handset in idle mode.
Step 2: Press ▲ or ▼ to highlight Bluetooth, then pressMENU/SELECT again.
Step 3: Press ▲ or ▼ to highlight Download DIR, then press MENU/SELECT.
• The handset displays Select a device briefly.
• If there is no cell phone paired to the system, the handset displays Pair cell first and then returns to the previous menu.
Step 4: Press ▲ or ▼ to choose a desired device when necessary, and then press MENU/SELECT.
• If the selected device is not available, the handset returns to the previous menu.
• During the download, the handset flashes Downloading...... All other idle system handsets display Downloading.....
• When the downloading process completes or when the memory is full, the handset displays Entries added: XXX. Then, the handset returns to the Bluetooth menu
Why don’t I get a dial tone on my handset?
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Tip 1 of 11
Confirm proper installation of the telephone base power supply and handset battery. You should only use the VTech power supply provided with your telephone. Make sure the power supply is not connected to an electrical outlet that is controlled by a wall switch. Confirm that the electrical outlet that the telephone is plugged into is working. -
Tip 2 of 11
Confirm proper installation of the handset battery:
Step 1: Align the two holes in the plug with the socket pins, then snap the plug into place.
Step 2: Place the battery in the compartment, making sure the wires will not get in the way of the battery cover.
Step 3: Replace cover by sliding it upwards until it clicks into place.
Step 4: Be sure to charge the battery in the handset for a minimum of 16 hours before using your phone. -
Tip 3 of 11
When placing the handset in the base or charger, confirm that the charge contacts are making a good connection. The charging battery icon is displayed and, on selected models, the CHARGE light illuminates on the handset while it charges.
You should allow 16 hours to fully charge the handset battery. For optimum daily performance, return the handset to its telephone base or charger when not in use. -
Tip 4 of 11
Are you attempting to use more than two handsets on the same call? Your system allows you to use two handsets at a time. You can also forward and transfer calls from one handset to another. See your User’s Manual for details. -
Tip 5 of 11
Move the handset closer to the base. The operating range may vary with environmental conditions and time of use. There may be places within your environment that a cordless phone will not work well. If the problem only occurs in certain areas of your environment, you can conclude that there is nothing wrong with the phone. Consider trying a phone that operates on a different wireless frequency. -
Tip 6 of 11
Recradle the handset for 15 seconds, then try using it again. -
Tip 7 of 11
You may need to replace the rechargeable battery, especially if it has been in service for more than one year. To find a replacement, refer to our VTech Battery Finder. If a battery for your model is unavailable, you can search the internet using the key words cordless phone batteries for an on-line supplier. If you prefer to purchase locally, you can look for a replacement battery at your area consumer electronics retailers. It is recommended that you take your present battery with you to insure your replacement is the correct size and has the correct plug (where applicable) and specifications. -
Tip 8 of 11
You may have a defective telephone cord. Try replacing cord between the jack and telephone base. -
Tip 9 of 11
If you have connected this telephone to a phone jack that has not been used before, or that has not been used in sometime, there may be problems with this jack that you are not aware of. Use a telephone jack that you know is in proper working order. -
Tip 10 of 11
If the other phones in your home are having the issue, the problem could be related to the telephone wiring in your home, or with your local telephone service. Please call your service provider for further assistance. -
Tip 11 of 11
If the phone is not responding normally, you may need to reset your telephone system. Complete the following steps to reset the telephone system:
Step 1: Disconnect the power to the telephone base.
Step 2: Disconnect the handset batteries.
Step 3: Wait a few minutes and then reconnect the power to the telephone base.
Step 4: Reconnect the handset batteries.
Step 5: Wait about one minute for the handsets to re-establish a link with the telephone base and then test the phone again.
NOTE: After resetting the telephone system, you will need to reset the clock. If the time is not set, you will hear Time and Day Not Set when you listen to messages.
NOTE: If you have caller ID service, the time will automatically be updated whenever caller ID information is delivered. However, since caller ID delivers the date, rather than the day, you must program the year once so the system can derive the day of the week.
Set date and time
Use one of your system handsets to set up your answering system. When the phone is not in use:
Step 1: Press MENU/SELECT.
Step 2: Press ▲ or ▼ until you highlight Set date/time, then press MENU/SELECT.
Step 3: Use the dialing keys (0-9) to enter the month, date and year, then press MENU/SELECT.
Step 4: Use the dialing keys (0-9) to enter the hour and minute. Press ▲ or ▼ to select AM or PM, then press MENU/SELECT.
Step 5: Press and hold OFF to return to the idle screen.
Why won’t the handset CHARGE light turn on when I place it in the base or charger?
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Tip 1 of 6
Confirm proper installation of the telephone base power supply and handset battery. You should only use the VTech power supply provided with your telephone. Make sure the power supply is not connected to an electrical outlet that is controlled by a wall switch. Confirm that the electrical outlet that the telephone is plugged into is working. -
Tip 2 of 6
Please make sure that the cords (power and telephone line) are plugged into the channels on the bottom of the base. If the cords are not properly installed, the base will not sit level and the phone may not charge properly. -
Tip 3 of 6
Dirty charge contacts on the telephone base and handset could prevent the batteries from charging. Clean the handset and base charge contacts using a pencil eraser or a cloth to eliminate deposit accumulation. -
Tip 4 of 6
Make sure that the battery cover is properly secured on the handset. If the battery cover is not correctly installed, it may prevent the handset from charging. -
Tip 5 of 6
When placing the handset in the base or charger, confirm that the charge contacts are making a good connection. The charging battery icon is displayed and, on selected models, the CHARGE light illuminates on the handset while it charges.
You should allow 16 hours to fully charge the handset battery. For optimum daily performance, return the handset to its telephone base or charger when not in use. -
Tip 6 of 6
If the phone is not responding normally, you may need to reset your telephone system. Complete the following steps to reset the telephone system:
Step 1: Disconnect the power to the telephone base.
Step 2: Disconnect the handset batteries.
Step 3: Wait a few minutes and then reconnect the power to the telephone base.
Step 4: Reconnect the handset batteries.
Step 5: Wait about one minute for the handsets to re-establish a link with the telephone base and then test the phone again.
NOTE: After resetting the telephone system, you will need to reset the clock. If the time is not set, you will hear Time and Day Not Set when you listen to messages.
NOTE: If you have caller ID service, the time will automatically be updated whenever caller ID information is delivered. However, since caller ID delivers the date, rather than the day, you must program the year once so the system can derive the day of the week.
Set date and time
Use one of your system handsets to set up your answering system. When the phone is not in use:
Step 1: Press MENU/SELECT.
Step 2: Press ▲ or ▼ until you highlight Set date/time, then press MENU/SELECT.
Step 3: Use the dialing keys (0-9) to enter the month, date and year, then press MENU/SELECT.
Step 4: Use the dialing keys (0-9) to enter the hour and minute. Press ▲ or ▼ to select AM or PM, then press MENU/SELECT.
Step 5: Press and hold OFF to return to the idle screen.
Why do calls fade/cut in and out when I’m using this phone?
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Tip 1 of 9
Move the handset closer to the base. The operating range may vary with environmental conditions and time of use. There may be places within your environment that a cordless phone will not work well. If the problem only occurs in certain areas of your environment, you can conclude that there is nothing wrong with the phone. Consider trying a phone that operates on a different wireless frequency. -
Tip 2 of 9
If you subscribe to DSL service for this telephone line, DSL filters must be plugged into EVERY phone jack that has a phone. The DSL signal can cause static/noise, squealing (similar to fax tones), caller ID disruption and other issues on your line. DSL filters block the high frequency DSL signals from being transmitted to the telephone. If you are not using the DSL filters provided by the telephone company, this will cause static/noise and possibly caller id issues on your phones.
In most cases, we recommend you connect the plug end of the DSL filter into the telephone jack, then connect a telephone cord between the filter and your phone.
Please contact your service provider to obtain DSL filters and installation information. -
Tip 3 of 9
Other electronic products (i.e., 802.11 wireless networking products, radios, radio towers, pager towers, cell phones, intercoms, room monitors, televisions, personal computers, kitchen appliances and other cordless phones) can cause interference with your cordless phone. Try installing your phone as far away as possible from these types of electronic devices. -
Tip 4 of 9
To get better reception, try moving the telephone base to higher location. Relocate telephone base near a window if using telephone outside. -
Tip 5 of 9
Excessive background noise will cause a speakerphone to fade in and out. Try controlling the background noise by turning off any audio devices near the speakerphone. Also, try to avoid interrupting the person at the other end of the conversation while they are speaking. If background noise cannot be controlled, you should terminate speakerphone operation and return to normal handset mode. -
Tip 6 of 9
Disconnect any other equipment that is connected in series with your phone. If your phone begins to perform normally, there is a compatability issue with your other equipment. -
Tip 7 of 9
If your phone shares a power outlet with a modem, or if it is plugged in to a shared surge protector, try plugging the phone (or modem/surge protector) in at a different location. If this solves the problem, re-locate your phone or modem farther apart from one another, or use separate surge protectors. -
Tip 8 of 9
There may be places within your environment that a cordless phone will not work well. If the problem only occurs in certain areas of your environment, there is nothing wrong with the phone. This is normal radio operation. -
Tip 9 of 9
If the other phones in your home are having the issue, the problem could be related to the telephone wiring in your home, or with your local telephone service. Please call your service provider for further assistance.
Why won’t the battery(s) in my telephone handset hold a charge?
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Tip 1 of 11
Confirm proper installation of the telephone base power supply and handset battery. You should only use the VTech power supply provided with your telephone. Make sure the power supply is not connected to an electrical outlet that is controlled by a wall switch. Confirm that the electrical outlet that the telephone is plugged into is working. -
Tip 2 of 11
Make sure that the power cord is securely plugged into the base and electrical outlet. Make sure the electrical outlet is not controlled by a wall switch. -
Tip 3 of 11
Confirm proper installation of the handset battery. If the battery is missing or installed wrong, you will see this error message. The proper installation procedure for the battery is as follows:
Step 1: Align the two holes in the plug with the socket pins, then snap the plug into place.
Step 2: Place the battery in the compartment with the wires in the upper left corner.
Step 3: Replace cover by sliding it upwards until it clicks into place.
Step 4: Be sure to charge the battery in the handset for a minimum of 16 hours before using your phone. -
Tip 4 of 11
If you are a frequent user of the handset speakerphone feature, the total talk time on a fullly charged battery will decrease. -
Tip 5 of 11
When placing the handset in the base or charger, confirm that the charge contacts are making a good connection. The charging battery icon is displayed and, on selected models, the CHARGE light illuminates on the handset while it charges.
You should allow 16 hours to fully charge the handset battery. For optimum daily performance, return the handset to its telephone base or charger when not in use. -
Tip 6 of 11
Make sure you are using the battery supplied with your phone. If you are replacing the battery and you need assistance, refer to our VTech Battery Finder. If a battery for your model is unavailable, you can search the internet using the key words cordless phone batteries for an on-line supplier. If you prefer to purchase locally, you can look for a replacement battery at your area consumer electronics retailers. It is recommended that you take your present battery with you to insure your replacement is the correct size and has the correct plug (where applicable) and specifications. -
Tip 7 of 11
Ensure that your cordless handset is cradled properly. Proper cradling will be confirmed by the CHARGE light remaining on. -
Tip 8 of 11
Please make sure that the cords (power and telephone line) are plugged into the channels on the bottom of the base. If the cords are not properly installed, the base will not sit level and the phone may not charge properly. -
Tip 9 of 11
Dirty charge contacts on the telephone base and handset could prevent the batteries from charging. Clean the handset and base charge contacts using a pencil eraser or a cloth to eliminate deposit accumulation. -
Tip 10 of 11
Make sure that the battery cover is properly secured on the handset. If the battery cover is not correctly installed, it may prevent the handset from charging. -
Tip 11 of 11
You may need to replace the rechargeable battery, especially if it has been in service for more than one year. To find a replacement, refer to our VTech Battery Finder. If a battery for your model is unavailable, you can search the internet using the key words cordless phone batteries for an on-line supplier. If you prefer to purchase locally, you can look for a replacement battery at your area consumer electronics retailers. It is recommended that you take your present battery with you to insure your replacement is the correct size and has the correct plug (where applicable) and specifications.
Why am I unable to dial out using this telephone?
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Tip 1 of 11
Confirm proper installation of the telephone base and charger power adapters, and handset battery. You should only use the VTech power adapters provided with your telephone. Make sure the power adapters are connected to working electrical outlets that are not controlled by a wall switch. -
Tip 2 of 11
Ensure the telephone cord is securely installed at the base and the wall jack. Or try another telephone cord. -
Tip 3 of 11
You may be dialing before the handset has fully established a link with the base. Make sure you verify presence of dial tone before dialing. It may help to wait a few seconds after handset is turned on before you begin dialing. -
Tip 4 of 11
Move the handset closer to the base. The operating range may vary with environmental conditions and time of use. There may be places within your environment that a cordless phone will not work well. If the problem only occurs in certain areas of your environment, you can conclude that there is nothing wrong with the phone. Consider trying a phone that operates on a different wireless frequency. -
Tip 5 of 11
When using the speakerphone, background noise can interfere with dialing as well as hearing the other party. Use the MUTE feature in the presence of background noise in your environment. -
Tip 6 of 11
Static, noise, calls cutting in and out and other erratic performance may be caused by nearby electronic equipment and other cordless devices using the same frequency. In addition, police scanners and HAM radios can generate interference. Separate your telephone system from these devices as much as possible. -
Tip 7 of 11
If you have connected this telephone to a phone jack that has not been used before, or that has not been used in sometime, there may be problems with this jack that you are not aware of. Use a telephone jack that you know is in proper working order. -
Tip 8 of 11
Recradle the handset for 15 seconds, then try using it again. -
Tip 9 of 11
Confirm that the phone is set to the correct dial mode for the type of service that you have (pulse or tone). The default setting for the telephone is for tone service. Complete the following steps if you need to change the dial mode:
Step 1: Using a handset when the phone is not in use, press MENU/SELECT.
Step 2: Press ▲ or ▼ until Settings is highlighted. Now press MENU/SELECT.
Step 3: Press ▲ or ▼ until Dial mode is highlighted, then press MENU/SELECT.
Step 4: Press ▲ or ▼ to highlight Touch-Tone or Pulse, then press MENU/SELECT.
Step 5: Press and hold OFF/CLEAR to return to the idle screen. -
Tip 10 of 11
If the other phones in your home are having the issue, the problem could be related to the telephone wiring in your home, or with your local telephone service. Please call your service provider for further assistance. -
Tip 11 of 11
If the phone is not responding normally, you may need to reset your telephone system. Complete the following steps to reset the telephone system:
Step 1: Disconnect the power to the telephone base.
Step 2: Disconnect the handset batteries.
Step 3: Wait a few minutes and then reconnect the power to the telephone base.
Step 4: Reconnect the handset batteries.
Step 5: Wait about one minute for the handsets to re-establish a link with the telephone base and then test the phone again.
NOTE: After resetting the telephone system, you will need to reset the clock. If the time is not set, you will hear Time and Day Not Set when you listen to messages.
NOTE: If you have caller ID service, the time will automatically be updated whenever caller ID information is delivered. However, since caller ID delivers the date, rather than the day, you must program the year once so the system can derive the day of the week.
Set date and time
Use one of your system handsets to set up your answering system. When the phone is not in use:
Step 1: Press MENU/SELECT.
Step 2: Press ▲ or ▼ until you highlight Set date/time, then press MENU/SELECT.
Step 3: Use the dialing keys (0-9) to enter the month, date and year, then press MENU/SELECT.
Step 4: Use the dialing keys (0-9) to enter the hour and minute. Press ▲ or ▼ to select AM or PM, then press MENU/SELECT.
Step 5: Press and hold OFF to return to the idle screen.
How to turn on/off call block?
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The Smart call blocker feature is set to on by default.
1. Press MENU/SELECT to enter the main menu when the handset is not in use.
2. Press ▲ or ▼ to scroll to Smart call blk, then press MENU/SELECT twice.
3. Press ▲ or ▼ to highlight SCB On or Off, then press MENU/SELECT. You hear a confirmation tone.
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Despite your VoIP box shows full signal strength, there could still be no dial tone/ display Line in Use/ etc. This may due to the abnormality of signal and voltage levels. Follow this short video to reset your VoIP box and its connected devices.
(For non-IS8151 series - all other models) https://www.youtube.com/watch?v=mXbXl4froUc&t=25s
(For IS8151-X series) https://www.youtube.com/watch?v=rJ9PNkwBzfE&t=3s
[Background]
• VoIP box connected via SIM/ LAN connection.
• Some VoIP boxes have displays and some not. While displays show steady ON and ready, you might still experience with no dial tone sound/ display Line in Use.[To Reset]
• Some Power off button does not fully power off the unit. It only put the VoIP box in standby mode. To truly power off, unplug the power adapter of your VoIP box.
• Disconnect all devices from the box. After a moment, reconnect your power adapter, and then press power button to turn ON.
• Wait until the VoIP box is steady ON and ready.
• Connect your telephone cable from your Telephone base to your VoIP box.REMINDER!!!
• Make sure you didn't connect the telephone cable from the Telephone wall outlet to VoIP box telephone port!!! Doing so will not damage the device, but it will affect the call function and becomes unusable. This is why you experience no dial tone, Line in Use with busy tone, etc.
• During power outage, your landline phone will not be available since it requires external electric power despite your VoIP box has a backup battery.If this situation persists, contact your VoIP / VoIP box service provider for further support.