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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.

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.

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.

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.

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.

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.

Q: What intercom system works for a carwash with two outdoor entry stations, each with a push-to-call button, and an indoor base for staff to respond when customers have issues?
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.

Q: We're testing UHF master and remote callboxes for a Canadian client. Are they pre-programmed, or do we need a programming kit?
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.

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.

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.

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.

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.

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: 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.

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.

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.

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.

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.