Product Support
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Two Handset Cordless Phone System with Caller ID and Handset Speakerphone
6041
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.
Why does it say NO LINE on my handset display?
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Tip 1 of 6
The idle handset will display NO LINE if it does not detect a live telephone line. Check the telephone line connection both at the phone jack and the base. -
Tip 2 of 6
When you try to make or answer a call, the phone will display NOT AVAILABLE if it is not connected to a live phone line. -
Tip 3 of 6
You may have a defective telephone cord. Try replacing cord between the jack and telephone base. -
Tip 4 of 6
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 5 of 6
If the handset 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 battery.
Step 3: Wait a few minutes and then reconnect the power to the telephone base.
Step 4: Reconnect the handset battery
Step 5: Wait about one minute for the handset to re-establish a link with the telephone base and then test the phone again. -
Tip 6 of 6
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.
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Tip 1 of 5
When you try to make or answer a call, the phone will display NOT AVAILABLE if it is not connected to a live phone line. -
Tip 2 of 5
The idle handset will display NO LINE if it does not detect a live telephone line. Check the telephone line connection both at the phone jack and the base. -
Tip 3 of 5
You may have a defective telephone cord. Try replacing cord between the jack and telephone base. -
Tip 4 of 5
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 5 of 5
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.
Why won’t the CHARGE light turn on when I place the handset in the base?
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Tip 1 of 7
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 7
Place the handset face up in the charging base and confirm that the charge contacts on the handset and base are making a good connection. The CHARGE light on the telephone base will be on when the handset is charging.
You should allow 16 hours to fully charge the handset battery. For optimum daily performance, return the handset to its telephone base when not in use. -
Tip 3 of 7
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 4 of 7
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 5 of 7
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 6 of 7
Ensure that your cordless handset is cradled properly. Proper cradling will be confirmed by the CHARGE light remaining on. -
Tip 7 of 7
If the handset 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 battery.
Step 3: Wait a few minutes and then reconnect the power to the telephone base.
Step 4: Reconnect the handset battery
Step 5: Wait about one minute for the handset to re-establish a link with the telephone base and then test the phone again.
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
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.
Why is WARNING CHECK BATTERY! shown on the handset display when I put it in the base?
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Confirm proper installation of the handset batteries. If a battery is missing or installed wrong, you will see this error message: WARNING CHECK BATTERY! The proper installation procedure for the batteries 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, 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.
Why won’t the battery(s) in my telephone handset hold a charge?
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Tip 1 of 12
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 12
Confirm proper installation of the handset batteries. If a battery is missing or installed wrong, you will see this error message: WARNING CHECK BATTERY! The proper installation procedure for the batteries 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, 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 12
Place the handset face up in the charging base and confirm that the charge contacts on the handset and base are making a good connection. The CHARGE light on the telephone base will be on when the handset is charging.
You should allow 16 hours to fully charge the handset battery. For optimum daily performance, return the handset to its telephone base when not in use. -
Tip 4 of 12
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 5 of 12
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 6 of 12
Ensure that your cordless handset is cradled properly. Proper cradling will be confirmed by the CHARGE light remaining on. -
Tip 7 of 12
Place the handset(s) in the charge cradle when the phone is not in use. -
Tip 8 of 12
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 12
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 12
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 12
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 12 of 12
If you continue to experience a problem with your phone not holding a charge, do not return it to the store. Call Customer Support at 1-800-595-9511.
Press 1 for product support. Make sure you know your 4-digit model number when you call.
- If the battery icon goes away when you take the handset out of its charger, yet other information remains on the screen, there is nothing wrong with your phone or battery. If the battery should run low, the icon will reappear in a flashing manner, indicating that you should recharge the handset.
The ringer on my phone is too loud or too soft. How do I adjust the ringer volume?
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Your handset ringer volume can be adjusted, or turned off:
Step 1: With the handset in idle (off) mode, press MENU/SELECT; then press ▲ or ▼ until ›SETUP HS is displayed.
Step 2: Press MENU/SELECT; then press▼ until ›RING VOLUME is displayed. Press MENU/SELECT again.
Step 3: Press VOL▲ to raise the volume or VOL▼ to lower or turn the ringer off completely (no bars are shaded); then press MENU/SELECT.
Step 4: Press and hold OFF to return to the idle screen.
Why is there an A or a near the bottom of my handset display?
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As you enter names in the handset directory, an A or a is displayed in the lower left corner of the display. This tells you if you are entering upper or lower case letters.
To switch from one case to the other, press the * key as you’re entering the name.
When I enter names in my directory, how do I switch between upper and lower case letters?
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As you enter names in the handset directory, an A or a is displayed in the lower left corner of the display. This tells you if you are entering upper or lower case letters.
To switch from one case to the other, press the * key as you’re entering the name.
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As you enter the name or phone number into the directory, press MUTE REMOVE to backspace one digit at a time. To erase all digits or characters, press and hold MUTE REMOVE.
As you enter names into the directory, the cursor automatically advances after you enter a letter. Allow about 2 seconds for the cursor to advance. To add an additional space, press 1.
My VOICEMAIL light remains on. How do I turn it off?
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Once you have listened to all new messages in your voice mail box, the voice mail indicators on your phone will turn off after you end your call. If the indicators remain on after you have reviewed all new messages, you can manually turn off the indicators:
Step 1: Press MENU/SELECT.
Step 2: Press ▲ or ▼ until ›SETUP BS is displayed.
Step 3: Press MENU/SELECT; then press ▼ until ›CLR VOICEMAIL is displayed.
Step 4: Press MENU/SELECT. INDICATOR OFF? is displayed.
Step 5: Press MENU/SELECT to confirm.
Step 6: Press and hold OFF to return to idle mode.
NOTE: This procedure only turns off the indicators. It does NOT delete any messages currently stored in your voice mail box.
Why am I not receiving caller ID on my phone?
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Tip 1 of 2
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 2
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.
How can I improve the sound quality on my cordless phone?
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If your handset has a CHANNEL (or CHAN) button, press it in order to improve the sound quality. You may need to press the CHANNEL button more than once.
The handset may be out of range. Try moving closer to the base. The handset(s) and base can only communicate over a certain distance which can vary with their placement, the weather and the operating environment of your home/office.
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.
A low battery pack may affect the sound quality. You may need to charge the handset. Also, try repositioning the handset against your ear until the sound quality improves.
Electronic products (i.e., 802.11 wireless networks, radios, radio and 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.
Appliances or other cordless phones plugged into the same circuit as the telephone base can cause interference. Try moving the appliances or telephone base to another outlet.
Microwave ovens may operate on the same frequency as your telephone. You may experience static on your telephone while the microwave oven is operating. Do not install your cordless telephone in the same outlet or near the microwave oven.
Disconnect the telephone base from the modular jack and plug in a corded telephone. If calls are still not clear, the problem is probably in the wiring or local service. Contact your local service company (charges may apply).
If your phone shares a power outlet with a modem, or if it is plugged into a shared surged protector, try plugging in the phone (or modem/surge protector) at a different location. If this solves the problem, relocate your phone and modem farther apart from each other, or use separate surge protectors.
The layout of your home or office may be limiting the operating range. Try moving the base to another location, preferably a higher location for better reception. If your telephone base has an adjustable antenna, ensure it is pointing up.
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Tip 1 of 7
CONNECTING... is shown in the handset display window while the handset waits for the dial tone from the telephone base. It may take a second or two to get the handset and base to synchronize and produce a dial tone. -
Tip 2 of 7
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 7
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 4 of 7
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 5 of 7
To get better reception, try moving the telephone base to higher location. Relocate telephone base near a window if using telephone outside. -
Tip 6 of 7
Recradle the handset for 15 seconds, then lift the handset and press TALK. -
Tip 7 of 7
If the handset 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 battery.
Step 3: Wait a few minutes and then reconnect the power to the telephone base.
Step 4: Reconnect the handset battery
Step 5: Wait about one minute for the handset to re-establish a link with the telephone base and then test the phone again.
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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.