A wireless callbox is an intercom or two-way radio station that does not require wiring between callboxes or stations.
Call Box Characteristics
- Wireless: Sends and receives using radio frequency (VHF, UHF, or MURS bands)
- Push-to-Talk: Like a two-way radio, push a button to talk and release to listen
- Talks to Two-way Radios: Will communicate with handheld or mobile two-way radios that are programmed to the same frequency and privacy code
- Battery, Solar or Powered: Battery, solar-powered or can be wired to an external power source
- Weatherproof: Enclosures are usually ruggedized and weatherproof for outdoor use
Uses
- Gate or Door Station – A place where visitors can push the call button to reach a guard station or staff area.
- Industrial Site – Remote gate station, parking lot, or loading dock.
- Construction Sites & Yards – Site coordination without the expense or hassle of running cable.
- Schools, Campuses and Parks – Emergency or service station.
Wireless Callbox FAQs
Q: Can a DMR Wireless Callbox be configured to prevent guests from listening to ongoing radio traffic?
A: No. The DMR Wireless Callbox will emit any transmission it receives on the programmed channel and privacy code. To prevent guests from eavesdropping, security should use a different frequency or change the privacy code.
A: No. The DMR Wireless Callbox will emit any transmission it receives on the programmed channel and privacy code. To prevent guests from eavesdropping, security should use a different frequency or change the privacy code.
Q: Are DMR Digital Callboxes UHF 450–470 MHz compatible with Motorola R5 and R7 radios?
A: Compatibility depends on whether the R5 and R7 radios support DMR. If they are DMR-compatible, the callboxes will work. It is best to confirm with Motorola for certainty.
A: Compatibility depends on whether the R5 and R7 radios support DMR. If they are DMR-compatible, the callboxes will work. It is best to confirm with Motorola for certainty.
Q: Do you have a digital callbox compatible with Motorola Cap+ (Mototrbo) systems?
A: Yes. The DMR Digital Callbox UHF 450–470 MHz is compatible with Motorola’s Mototrbo DMA systems. It supports single-frequency operation but can also be configured with separate transmit and receive frequencies for repeaters.
A: Yes. The DMR Digital Callbox UHF 450–470 MHz is compatible with Motorola’s Mototrbo DMA systems. It supports single-frequency operation but can also be configured with separate transmit and receive frequencies for repeaters.
Q: How can I use my own walkie-talkie to match my company’s system with a wireless callbox?
A: You will need to match both the frequency and privacy code used by your company. This may require programming software and a cable, or you can request that we program this into the callbox so it will work with your radios.
A: You will need to match both the frequency and privacy code used by your company. This may require programming software and a cable, or you can request that we program this into the callbox so it will work with your radios.
Q: Do I need to push the button on a wireless callbox to talk, or is it just an alert?
A: You must press the button on the callbox to initiate communication. When the button is pressed, it sends a tone to the receiving radios, enabling two-way push-to-talk communication.
A: A wireless MURS system like the RT1101 paired with an indoor MURS intercom (RT1014) is recommended. Stainless steel provides added durability, and five units remain in stock.
A: You must press the button on the callbox to initiate communication. When the button is pressed, it sends a tone to the receiving radios, enabling two-way push-to-talk communication.
Q: Where can I find the setup video for the RT1101 MURS Weatherproof Intercom System – Black?
A: The unit is preprogrammed to
channel 1, so no setup video is needed. Simply set your radios to MURS
channel 1 to begin using the system.
Q: Do you have an outdoor wireless system that supports multiple call boxes?
A: Yes. The RT1095 and RT1101 models
can be used outdoors with multiple call boxes. They can all be set to
the same channel or use up to five available MURS channels.
Specifications are available via the blue download button on each
product page.
A: A wireless MURS system like the RT1101 paired with an indoor MURS intercom (RT1014) is recommended. Stainless steel provides added durability, and five units remain in stock.
Q: What
wireless or wired intercom system is recommended for a door with
receivers in two separate offices in a concrete building where unlocking
the door is not needed?
A: The RT1101 wireless intercom with RT1014 MURS Commercial Wireless Intercom receivers
are recommended, but wireless performance through concrete is not
guaranteed. Intercoms Online offers a 45-day trial period for testing.
If wireless is unsuitable, the recommended wired option is the AP1042 Single
Door Access System with one door station and two master stations, which
does not include wiring or built-in battery backup.
Q: What solution can connect a
loading dock intercom to an office several hundred yards away, and is
there a handheld option too?
A: The RT1101 weatherproof intercom at the dock communicates with the
RT1014 base intercom in the office over that distance. For portable use,
the BT1001 handheld radio is compatible.
Q: Does the RT1100 intercom communicate with MURS handheld walkie talkies?
A: Yes.
The RT1100 is a MURS callbox so it works with MURS handheld walkie
talkies. Refer to the “How to Build a System” graphic on the RT1100 or RT1101 callbox product page for details on compatible devices.
Q: Can the MURS Callbox system use an external antenna to improve range between indoor and outdoor units?
A: Yes. All MURS callboxes can use external antennas. For better range, use the RT1014 base
station with an outdoor antenna such as the model listed at
https://www.intercomsonline.com/murs-outdoor-antenna . Mounting the
antenna on top of a building for line-of-sight will further improve
performance.
A: They can be pre-programmed if you provide the frequency and privacy code. Otherwise, a programming kit is needed, which is user-friendly.
Q: What information is needed to program UHF wireless callboxes when placing an order?
A: You need to provide the transmit/receive frequency and the privacy code used by your radios. For example, TX/RX: 462.7125 MHz and privacy code D246. This information should be added in the order comments to ensure proper programming.
A: You need to provide the transmit/receive frequency and the privacy code used by your radios. For example, TX/RX: 462.7125 MHz and privacy code D246. This information should be added in the order comments to ensure proper programming.
Q: Can you provide a quote for a two-way radio system with three locations, two radios, one outdoor callbox, and external power supply, and are they upgradable with warranties?
A: Yes. The RT1101 outdoor callbox (no door unlock) can be paired with handheld radios like the BT1001. External power can be used by adding the optional power cable and supply. The system is upgradable if the correct callbox with gate relay is chosen. All units have a one-year warranty and are designed to last for years.
Q: Can multiple call boxes
communicate with a central radio, such as several elevator call boxes
reporting back to one base radio in security?
A: Yes, multiple call boxes can communicate with a central base radio if they are all set to the same frequency and privacy code. For example, four elevator call boxes can connect to a single base station.
A: Yes, multiple call boxes can communicate with a central base radio if they are all set to the same frequency and privacy code. For example, four elevator call boxes can connect to a single base station.
Q: What equipment is needed to
install eight RT1100 callboxes for outdoor elevators, with one unit
powered instead of using batteries?
A: All callboxes can be the same RT1100 model.
To power one unit, purchase the power and relay cable along with a 12V
DC 1-amp power supply listed under Related Items on the product page.
The receiving callbox should also be taken out of Auto Turnoff mode.
Q: Does the MURS or UHF call box
have a solar power option to extend battery life, and can it be
purchased as part of a complete kit?
A: A solar panel kit is available in Related Items and requires an auxiliary power cable. All solar power systems have rechargeable batteries. Kits with solar are not sold; purchase is by individual components—callbox and radio kit, power cable, and solar panel. A walkie talkie or base station intercom is needed for the home end. The callbox is battery powered unless solar powered.
A: A solar panel kit is available in Related Items and requires an auxiliary power cable. All solar power systems have rechargeable batteries. Kits with solar are not sold; purchase is by individual components—callbox and radio kit, power cable, and solar panel. A walkie talkie or base station intercom is needed for the home end. The callbox is battery powered unless solar powered.
Q: Will the RT1014 MURS wireless intercom communicate with the RT1101 Weatherproof intercom, and can they also work with the BT1001 two-way radio?
A: Yes, they will work together when set to channel 1. The call box is preprogrammed to channel 1. This setup allows communication between dock, office, and floor operator. Range depends on the environment, but 300 feet indoors should work unless walls block the signal. External antennas are also available.
A: Yes, they will work together when set to channel 1. The call box is preprogrammed to channel 1. This setup allows communication between dock, office, and floor operator. Range depends on the environment, but 300 feet indoors should work unless walls block the signal. External antennas are also available.
Q: What should I do if my call box is not communicating with my walkie-talkie?
A: IntercomsOnline provides support only for products purchased directly from us. You will need to confirm your order number or verify that the product was purchased through IntercomsOnline to receive technical assistance. We are currently not available for troublshooting products, so you can send an email to [email protected] with your order number and problem, or you can contact us during office hours of 8 a.m. to 5 p.m. Central at 888-298-9489.
A: IntercomsOnline provides support only for products purchased directly from us. You will need to confirm your order number or verify that the product was purchased through IntercomsOnline to receive technical assistance. We are currently not available for troublshooting products, so you can send an email to [email protected] with your order number and problem, or you can contact us during office hours of 8 a.m. to 5 p.m. Central at 888-298-9489.
Q: What solution can connect a loading dock intercom to an office several hundred yards away, and is there a handheld option too?
A: The RT1101 weatherproof intercom at the dock communicates with the RT1014 base intercom in the office over that distance. For portable use, the BT1001 handheld radio is compatible.
A: The RT1101 weatherproof intercom at the dock communicates with the RT1014 base intercom in the office over that distance. For portable use, the BT1001 handheld radio is compatible.
Q: How many two-way radios can work with one MURS call box?
A: There is no limit. Any number of two-way radios can be paired with a MURS call box as long as they are set to the same channel. Intercoms are pre-programmed to channel 1.
A: There is no limit. Any number of two-way radios can be paired with a MURS call box as long as they are set to the same channel. Intercoms are pre-programmed to channel 1.
Q: What is the replacement for the RT1013 two-way radio, and will it work with existing call boxes?
A: The RT1013 has been replaced with the RT1116, which includes a gate-opening button compatible with RT1095 and RT1096 call boxes. It will work with your current setup. The BT1001 is also compatible for voice communication only but does not include a gate-opening button.
A: The RT1013 has been replaced with the RT1116, which includes a gate-opening button compatible with RT1095 and RT1096 call boxes. It will work with your current setup. The BT1001 is also compatible for voice communication only but does not include a gate-opening button.
Q: Is there an intrinsically safe wireless intercom for communication at a gas plant truck load-out area?
A: No. IntercomsOnline’s 2-way radio callboxes are weather-sealed and battery-powered but not rated as intrinsically safe. Currently, there are no intrinsically safe intercom models available.
A: No. IntercomsOnline’s 2-way radio callboxes are weather-sealed and battery-powered but not rated as intrinsically safe. Currently, there are no intrinsically safe intercom models available.
Q: Is there an emergency phone or call box that doesn’t require a phone line or monthly charge?
A: All emergency call boxes require some form of phone or Internet service. If you only need to communicate a short distance a 2-way radio callbox like the RT1101 could work. Or if you have Wi-Fi you could use a Wi-Fi intercom like the IO1094.
A: All emergency call boxes require some form of phone or Internet service. If you only need to communicate a short distance a 2-way radio callbox like the RT1101 could work. Or if you have Wi-Fi you could use a Wi-Fi intercom like the IO1094.
Q: Can multiple base station intercoms or call boxes be connected to call from one unit to all others?
A: Yes, multiple base station intercoms or call boxes can be interconnected to allow one unit to call all others simultaneously, provided they are all operating on the same frequency. There is no set limit to how many can be connected this way.
Q: What UHF callbox and radio can I use in Canada, and what range can I expect through concrete walls?
A: Only UHF equipment can be used in Canada. Range varies by environment, but in ideal open conditions it can reach a few miles. The UHF handset or commercial UHFbase radio pairs with the UHF callbox, and Canadian versions are available. There are no Canadian distributors, but we ship there.
A: Only UHF equipment can be used in Canada. Range varies by environment, but in ideal open conditions it can reach a few miles. The UHF handset or commercial UHFbase radio pairs with the UHF callbox, and Canadian versions are available. There are no Canadian distributors, but we ship there.
Q: What is the range of the RT1101 callbox with handheld radios in a Canadian car wash, and will the frequencies work there?
A: MURS/VHF equipment cannot be used in Canada. Only UHF callboxes and UHF radios are allowed. Range depends on the site and concrete walls, so no precise distance can be guaranteed.
A: MURS/VHF equipment cannot be used in Canada. Only UHF callboxes and UHF radios are allowed. Range depends on the site and concrete walls, so no precise distance can be guaranteed.
Q: Can my employees carry a portable receiver for a wireless customer call button system?
A: Yes. For the UHF version you can use a UHF handheld radio, such as the RT1122. You can also pair it with a UHF call box like the RT1082 customer service callbox. For MURS versions you can use any of the MURS radios.
Q: Can I purchase a wireless customer assist call button in Canada?
A: Yes, the UHF versions are available and legal in Canada. MURS versions are not legal for use there.
A: Yes. For the UHF version you can use a UHF handheld radio, such as the RT1122. You can also pair it with a UHF call box like the RT1082 customer service callbox. For MURS versions you can use any of the MURS radios.
Q: Can I purchase a wireless customer assist call button in Canada?
A: Yes, the UHF versions are available and legal in Canada. MURS versions are not legal for use there.
Q: I need a wireless call box for a single gate that communicates with one other location, does not require relay control, and will not interfere with an existing VHF radio system. What do you recommend?
A: For this application, a UHF-based wireless call box is the correct solution because UHF frequencies will not interfere with your existing VHF system operating in the 153–158 MHz range. The RT1103 UHF Compact Wireless Call Box is well suited for a single gate to single location setup, provides reliable wireless communication, and does not include unnecessary relay control features, making it a clean and compatible choice for your site.
A: For this application, a UHF-based wireless call box is the correct solution because UHF frequencies will not interfere with your existing VHF system operating in the 153–158 MHz range. The RT1103 UHF Compact Wireless Call Box is well suited for a single gate to single location setup, provides reliable wireless communication, and does not include unnecessary relay control features, making it a clean and compatible choice for your site.
Q: We need to replace our old wired call box at a chemical facility with a wireless unit that can unlock a slide gate, allow visitor communication with a supervisor, and provide keyless entry for employees using fobs, PIN codes, or smartphones over WiFi. What do you recommend?
A: For your application, you need a WiFi-enabled video intercom with integrated access control. The IO1123 supports up to 150 PIN or QR codes and can manage employee access while providing visitor communication: https://www.intercomsonline.com/opyn-ip-video-with-keypad
. If you specifically require fob access along with keycodes and WiFi connectivity, the IO1054 is a strong option. It supports standard 125kHz proximity cards for fobs and keypad entry for visitors and employees: https://www.intercomsonline.com/vertical-mount-wifi-video-system-with-keypad
. Both systems provide intercom communication and gate control functionality suitable for a slide gate in an industrial environment.
Q: What frequency does the RT1095 use, can any walkie-talkie work with it, and which radios will activate its relay for gate control?
A: The RT1095 operates on MURS frequencies and only works with MURS radios. Not all walkie-talkies are compatible. If you need to activate the built-in relay for door or gate control, the radio must have a programmable button. The MURS RT1116 handheld radio includes a programmable button and will work with the RT1095 and RT1014 base station: https://www.intercomsonline.com/murs-nt-2-way-radio
A system consisting of the RT1095 callbox, RT1116 handheld, and RT1014 base station will allow all devices to activate the relay when properly configured.
. In addition to MURS options, there are also UHF call boxes available here: https://www.intercomsonline.com/uhf-compact-wireless-callbox-with-relay-black
Q: What would it cost for a Callbox XT with a base station and a handheld unit, is there a limit on handhelds, and which unit includes a gate relay?
A: The RT1029 Callbox XT has been discontinued. Metal enclosure units were discontinued because the metal housing interfered with radio reception. Instead, you can use the RT1101 callbox as part of a MURS weatherproof intercom system: https://www.intercomsonline.com/murs-weatherproof-intercom-system-black
. The RT1014 serves as the base station. There is no limit to the number of handheld units or base stations that can be used on the system. If you require a built-in gate relay, the RT1095 includes the relay. To activate it, you will need either the RT1116 handheld radio or the RT1014 base station.
Q: Can the RT1100 wireless call box intercom system be used to install call boxes on multiple floors of a construction transport platform, and do they all need to be powered?
A: Yes, wireless call boxes can be installed on each floor, but there are some important power requirements. Battery-powered two-way call boxes enter a sleep mode to conserve battery life. If all units are sleeping, they cannot communicate with each other. To ensure continuous communication, the call box inside the elevator or platform car must be powered using a 12-volt supply and the optional power and relay cable. This keeps the system active so all call boxes can communicate with the car. If the car unit is not powered, the system will not function because the devices may remain in sleep mode.
Q: Can a walkie-talkie or radio system open a door and notify the visitor that the door has been unlocked, and will it work with an existing camera system?
A: Yes. A wireless call box combined with a compatible two-way radio or base station intercom can activate an electric door strike to unlock a door. For example, you can use a wireless gate or door call box along with a radio such as: https://www.intercomsonline.com/murs-wireless-gate-intercom-system-relay-black
and https://www.intercomsonline.com/murs-nt-2-way-radio . A base station intercom is another option: https://www.intercomsonline.com/murs-commercial-wireless-intercom-1unit . When the door unlock button is pressed, a tone sounds to indicate the door has been released. However, two-way radio systems cannot transmit video, so they cannot integrate directly with a video feed. If video capability is required, a WiFi video intercom system would be needed. The radio system will not interfere with an existing camera system so it could continue to be used.
A: For your application, you need a WiFi-enabled video intercom with integrated access control. The IO1123 supports up to 150 PIN or QR codes and can manage employee access while providing visitor communication: https://www.intercomsonline.com/opyn-ip-video-with-keypad
. If you specifically require fob access along with keycodes and WiFi connectivity, the IO1054 is a strong option. It supports standard 125kHz proximity cards for fobs and keypad entry for visitors and employees: https://www.intercomsonline.com/vertical-mount-wifi-video-system-with-keypad
. Both systems provide intercom communication and gate control functionality suitable for a slide gate in an industrial environment.
Q: What frequency does the RT1095 use, can any walkie-talkie work with it, and which radios will activate its relay for gate control?
A: The RT1095 operates on MURS frequencies and only works with MURS radios. Not all walkie-talkies are compatible. If you need to activate the built-in relay for door or gate control, the radio must have a programmable button. The MURS RT1116 handheld radio includes a programmable button and will work with the RT1095 and RT1014 base station: https://www.intercomsonline.com/murs-nt-2-way-radio
A system consisting of the RT1095 callbox, RT1116 handheld, and RT1014 base station will allow all devices to activate the relay when properly configured.
. In addition to MURS options, there are also UHF call boxes available here: https://www.intercomsonline.com/uhf-compact-wireless-callbox-with-relay-black
Q: What would it cost for a Callbox XT with a base station and a handheld unit, is there a limit on handhelds, and which unit includes a gate relay?
A: The RT1029 Callbox XT has been discontinued. Metal enclosure units were discontinued because the metal housing interfered with radio reception. Instead, you can use the RT1101 callbox as part of a MURS weatherproof intercom system: https://www.intercomsonline.com/murs-weatherproof-intercom-system-black
. The RT1014 serves as the base station. There is no limit to the number of handheld units or base stations that can be used on the system. If you require a built-in gate relay, the RT1095 includes the relay. To activate it, you will need either the RT1116 handheld radio or the RT1014 base station.
Q: Can the RT1100 wireless call box intercom system be used to install call boxes on multiple floors of a construction transport platform, and do they all need to be powered?
A: Yes, wireless call boxes can be installed on each floor, but there are some important power requirements. Battery-powered two-way call boxes enter a sleep mode to conserve battery life. If all units are sleeping, they cannot communicate with each other. To ensure continuous communication, the call box inside the elevator or platform car must be powered using a 12-volt supply and the optional power and relay cable. This keeps the system active so all call boxes can communicate with the car. If the car unit is not powered, the system will not function because the devices may remain in sleep mode.
Q: Can a walkie-talkie or radio system open a door and notify the visitor that the door has been unlocked, and will it work with an existing camera system?
A: Yes. A wireless call box combined with a compatible two-way radio or base station intercom can activate an electric door strike to unlock a door. For example, you can use a wireless gate or door call box along with a radio such as: https://www.intercomsonline.com/murs-wireless-gate-intercom-system-relay-black
and https://www.intercomsonline.com/murs-nt-2-way-radio . A base station intercom is another option: https://www.intercomsonline.com/murs-commercial-wireless-intercom-1unit . When the door unlock button is pressed, a tone sounds to indicate the door has been released. However, two-way radio systems cannot transmit video, so they cannot integrate directly with a video feed. If video capability is required, a WiFi video intercom system would be needed. The radio system will not interfere with an existing camera system so it could continue to be used.
Q: Is the RT1095 call box compatible with the MURS Radio RT1116?
A: Yes, the RT1095 call box is fully compatible with the RT1116 radio since both operate on MURS frequencies. To ensure proper communication, simply set the radio to Channel 1.
A: Yes, the RT1095 call box is fully compatible with the RT1116 radio since both operate on MURS frequencies. To ensure proper communication, simply set the radio to Channel 1.
Q: Does the AT1001 intercom system require a phone or internet connection to use just the intercom feature?
A: No internet or phone connection is needed. The AT1001 only requires power at each end and uses radio frequencies to communicate.
A: No internet or phone connection is needed. The AT1001 only requires power at each end and uses radio frequencies to communicate.
Q: I have the IO1080 Long-Range Wireless Outdoor Intercom Kit — can I buy a second one and run it as a completely independent system?
A: Both kits come pre-programmed to channel 1, but you can change the channel on one of them. Yes, you can run two completely independent intercom systems. Instructions for reprogramming are in the radio manual that came with the unit, and the callbox included download instructions for its manual.
Q: How many independent pair sets of the RT1101 MURS intercom can be used simultaneously in close proximity, and is it loud enough near diesel engines?
A: There are 5 MURS channels available, so you can have up to 5 independent pair sets each on their own channel with no crosstalk. The speaker should be audible if someone is within a couple of feet, but for very noisy diesel environments, the ZT1032 noise-cancelling intercom would be a better fit. The ZT1032 is a wired (CAT5/Power over Ethernet) system, but it can be converted to wireless: https://www.intercomsonline.com/cat5-to-wireless-conversion. It is a hands-free, always-on system — no button press needed to communicate, though it also supports three activation modes: button press, sensor trigger, or automatic answer. For construction equipment use with only 120V power available, you'd also need a POE switch. A spec sheet is available here: https://intercomsonline.com/v/vspfiles/downloadables/ZT1001SupportPDFs/IO-Truck-Scale-Cutsheet.pdf and programming is handled by us. For your specific use case of isolated operator-to-operator communication on equipment, two ZT1032 units wired together per pair would prevent any cross-communication between sets.
Q: Do you have a handheld long-range receiver with no base station that works with a normally closed circuit alarm?
A: Yes. If your application requires a transmitter that monitors a normally closed circuit and sends a message when the circuit opens, a wireless callbox system can provide that functionality without requiring a base station. One option is: [https://www.intercomsonline.com/murs-wireless-gate-intercom-system-relay-black]
A: Both kits come pre-programmed to channel 1, but you can change the channel on one of them. Yes, you can run two completely independent intercom systems. Instructions for reprogramming are in the radio manual that came with the unit, and the callbox included download instructions for its manual.
Q: How many independent pair sets of the RT1101 MURS intercom can be used simultaneously in close proximity, and is it loud enough near diesel engines?
A: There are 5 MURS channels available, so you can have up to 5 independent pair sets each on their own channel with no crosstalk. The speaker should be audible if someone is within a couple of feet, but for very noisy diesel environments, the ZT1032 noise-cancelling intercom would be a better fit. The ZT1032 is a wired (CAT5/Power over Ethernet) system, but it can be converted to wireless: https://www.intercomsonline.com/cat5-to-wireless-conversion. It is a hands-free, always-on system — no button press needed to communicate, though it also supports three activation modes: button press, sensor trigger, or automatic answer. For construction equipment use with only 120V power available, you'd also need a POE switch. A spec sheet is available here: https://intercomsonline.com/v/vspfiles/downloadables/ZT1001SupportPDFs/IO-Truck-Scale-Cutsheet.pdf and programming is handled by us. For your specific use case of isolated operator-to-operator communication on equipment, two ZT1032 units wired together per pair would prevent any cross-communication between sets.
Q: Do you have a handheld long-range receiver with no base station that works with a normally closed circuit alarm?
A: Yes. If your application requires a transmitter that monitors a normally closed circuit and sends a message when the circuit opens, a wireless callbox system can provide that functionality without requiring a base station. One option is: [https://www.intercomsonline.com/murs-wireless-gate-intercom-system-relay-black]
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