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A cell phone intercom is an intercom system that utilizes the cellular network (4G LTE) to transmit two-way voice communications between two locations. There are no wires, it does not use wifi and no radio frequencies.

It uses a SIM card in the intercom to place and receive calls like a mobile phone. When the visitor presses the call button, the intercom system dials a pre-programmed phone number (mobile phone or landline).

Benefits include: 

  1. No need to wire between the gate and office.
  2. Anywhere there is cellular service, it will work.
  3. Calls can be made to multiple phone numbers in sequence or all at the same time.
  4. Remote control access (push keypad code or phone key to open gate, etc. ). 

Typical applications: 

  • Gate and driveway entry. 
  • Remote or temporary work sites. 
  • Parking lots and storage areas. 
  • Off grid properties in rural areas. 

Cell Phone Intercom FAQs

Q: Does the Opyn cell phone camera intercom require an external 4G router, and can it run on solar power?
A: The cellular version has a built-in 4G router and does not require an external one. It is powered by a 24V DC supply that must be plugged into an outlet. It can run on a solar-powered gate system if it provides 24V (two 12V batteries), such as the 24-volt 30-watt solar panel kit.

Q: What is the monthly cellular cost for the IO1112 network intercom?
A: The most current pricing is available via the link in the product description: https://www.intercomsonline.com/cell-phone-network-intercom-cellular-plan.

Q: What wireless doorbell system do you recommend for six apartments?
A: The IO1057 is recommended. It is a modular cellular apartment intercom that can be expanded by adding two 3-button modules and a 3-module housing.
Q: Do you have an emergency cellular call box for a community pool that can call 911, is weatherproof, and operates without a landline?

A: Yes. The IO1115 GSM intercom without a keypad can be programmed to call 911 and is suitable for outdoor use. It operates on AC power with a DC converter or solar power, though cellular units cannot run on batteries due to high current draw. No landline is required since it uses cellular service.

Q: What is the best solution for a gate intercom with video feed to a phone when the gate is too far for WiFi?
A: A video cell intercom, such as the IO1052 or IO1125, can be used, but they require separate cell service. Alternatively, if running CAT5 cable (up to 326 feet) is possible, the offers video calls to phones without monthly fees. It works with iOS, Android, and optional in-home screens or tablets, and can control a gate opener via two wired connections. Multiple users can access it through the app on any WiFi or cellular network.

Q: What system allows a homeowner 1,000 feet from a gate to have a camera, microphone, speaker, and gate activation from the house?
A: A cellular intercom, such as the video cell phone intercom with keypad, is recommended. The IO1052 It connects to the gate controller via two wires and requires a cell line at the gate. A data plan is needed for video. Gate status feedback can be added with an additional switch.

Q: What does Google Home integration do for Part Number IO1125 and IO1123 cell intercoms, and do they allow full two-way audio and relay control?
A: Google Home integration for IO1125 and IO1123 only reports incoming calls and allows one-way communication to the intercom. Google restrictions prevent full two-way audio and relay control, and no intercoms currently bypass these limitations.

Q: Does Part Number IO1115 work with Canadian SIM cards, and can a ZT1035 GSM intercom be adapted to fit into it?
A: Yes, IO1115 works with Canadian SIM cards. A ZT1035 GSM intercom can be adapted to fit using custom plates, which are not included in the price. Pricing for plates requires a quote from manufacturing, and inquiries should be sent to [email protected].

Q: Can the Video Cell Phone Intercom with Keypad connect to a laptop or TV?
A: No, it cannot connect to a laptop or TV. It has no interface for direct connection and only supports SD card recording.

Q: Is there a 5G version of the cell gate intercom with keypad, and will current models become outdated soon?
A: No 5G models are available yet, but current intercoms have upgradable boards and software, so they will not quickly become outdated. 5G is not necessary for these systems.

Q: What are the cellular service rates for the IO1038 intercom system?
A: The service rates for the IO1038 can be found through a link provided on the product page: https://www.intercomsonline.com/cell-phone-network-intercom-cellular-plan

Q: Are there additional monthly fees for using cellular call boxes, and which carriers are supported?
A: The only recurring cost is the cellular service fee. The call boxes are not compatible with Verizon but do work with AT&T and T-Mobile.

Q: Can a malfunctioning landline intercom be replaced with a cell phone-based system, and what are the installation details?
A: Yes, a cell phone intercom can replace a landline system. The keypad operates independently of the intercom, so the landline can be canceled anytime. A cellular intercom allows any phone number to be programmed and includes a SIM card. Installation involves connecting an included AC/DC transformer, wiring to the electric door strike, activating the SIM card, and programming phone numbers. Models like the IO1057 offer one button per apartment, multiple access codes for different users, and straightforward setup.

Q: What is the best option to update a 56-unit apartment building from a 2-wire intercom to a wireless single door entry system?
A: The IO1111 cellular-based system is recommended for its ease and speed of installation.

Q: Does the Opyn cell phone camera intercom require an external 4G router, and can it run on solar power?
A: The cellular version has a built-in 4G router and does not require an external one. It is powered by a 24V DC supply that must be plugged into an outlet. It can run on a solar-powered gate system if it provides 24V (two 12V batteries), such as the 24-volt 30-watt solar panel kit.

Q: What is the monthly cellular cost for the IO1112 network intercom?
A: The most current pricing is available via the link in the product description: https://www.intercomsonline.com/cell-phone-network-intercom-cellular-plan.

Q: What wireless doorbell system do you recommend for six apartments?
A: The IO1057 is recommended. It is a modular cellular apartment intercom that can be expanded by adding two 3-button modules and a 3-module housing.
Q: Do you have an emergency cellular call box for a community pool that can call 911, is weatherproof, and operates without a landline?

A: Yes. The IO1115 GSM intercom without a keypad can be programmed to call 911 and is suitable for outdoor use. It operates on AC power with a DC converter or solar power, though cellular units cannot run on batteries due to high current draw. No landline is required since it uses cellular service.

Q: What is the most cost-effective solution for a small apartment building with a failing 4-wire intercom system due to damaged wiring?
A: The recommended solution is a cellular-based multi-tenant intercom, requiring a monthly fee for cell service, which avoids rewiring costs that could reach thousands. Two main options exist: a larger button-per-unit model and a smaller directory-based model with keypad and proximity reader capabilities. Both allow tenants to receive calls on regular phones (including flip phones) without using an app. The keypad enables PIN code entry for access, though it may not support letter-number apartment identifiers. Installation involves mounting the unit, attaching the antenna, wiring to the door strike, and programming via app.

Q: What is the best solution for a gate intercom with video feed to a phone when the gate is too far for WiFi?
A: A video cell intercom, such as the IO1052 or IO1125, can be used, but they require separate cell service. Alternatively, if running CAT5 cable (up to 326 feet) is possible, the offers video calls to phones without monthly fees. It works with iOS, Android, and optional in-home screens or tablets, and can control a gate opener via two wired connections. Multiple users can access it through the app on any WiFi or cellular network.

Q: What system allows a homeowner 1,000 feet from a gate to have a camera, microphone, speaker, and gate activation from the house?
A: A cellular intercom, such as the video cell phone intercom with keypad, is recommended. The IO1052 It connects to the gate controller via two wires and requires a cell line at the gate. A data plan is needed for video. Gate status feedback can be added with an additional switch.

Q: What does Google Home integration do for Part Number IO1125 and IO1123 cell intercoms, and do they allow full two-way audio and relay control?
A: Google Home integration for IO1125 and IO1123 only reports incoming calls and allows one-way communication to the intercom. Google restrictions prevent full two-way audio and relay control, and no intercoms currently bypass these limitations.

Q: Does Part Number IO1115 work with Canadian SIM cards, and can a ZT1035 GSM intercom be adapted to fit into it?
A: Yes, IO1115 works with Canadian SIM cards. A ZT1035 GSM intercom can be adapted to fit using custom plates, which are not included in the price. Pricing for plates requires a quote from manufacturing, and inquiries should be sent to [email protected].

Q: What intercom solution works for a 9-unit HOA on a gated street wanting to move away from landlines and damaged underground cables?
A: The IO1057 cellular intercom with individual buttons is a good option, though it still requires wiring to the gate opener. Wireless relays from companies like BWI Eagle may eliminate the need for underground cables. Custom-built units like the IO1057 take 3–4 weeks to build. If you need something faster, a directory-based model like the IO1111 are available in stock.

Q: Can the Video Cell Phone Intercom with Keypad connect to a laptop or TV?
A: No, it cannot connect to a laptop or TV. It has no interface for direct connection and only supports SD card recording.

Q: Is there a 5G version of the cell gate intercom with keypad, and will current models become outdated soon?
A: No 5G models are available yet, but current intercoms have upgradable boards and software, so they will not quickly become outdated. 5G is not necessary for these systems.

Q: What are the cellular service rates for the IO1038 intercom system?
A: The service rates for the IO1038 can be found through a link provided on the product page: https://www.intercomsonline.com/cell-phone-network-intercom-cellular-plan

Q: Are there additional monthly fees for using cellular call boxes, and which carriers are supported?A: The only recurring cost is the cellular service fee. The call boxes are not compatible with Verizon but do work with AT&T and T-Mobile.

Q: What is the difference between the AE1006 and IO1111 intercom models, and do they work with T-Mobile?
A: The AE1006 and IO1111 mainly differ in appearance. The AE1006 is in stock, while the IO1111 is built to order. Both work with T-Mobile or AT&T cellular service, or any GSM-based carrier. The directory feature cannot be hidden, and a directory must be programmed for the system to function properly.

Q: What is the most cost-effective solution for a small apartment building with a failing 4-wire intercom system due to damaged wiring?
A: The recommended solution is a cellular-based multi-tenant intercom, requiring a monthly fee for cell service, which avoids rewiring costs that could reach thousands. Two main options exist: a larger button-per-unit model and a smaller directory-based model with keypad and proximity reader capabilities. Both allow tenants to receive calls on regular phones (including flip phones) without using an app. The keypad enables PIN code entry for access, though it may not support letter-number apartment identifiers. Installation involves mounting the unit, attaching the antenna, wiring to the door strike, and programming via app.

Q: Does the IO1111 intercom have a built-in door buzzer relay, and what is the lead time?
A: Yes, the IO1111 includes a built-in door buzzer relay. It is sometimes in stock or the lead time is about 4 weeks since it is built in the UK, which includes shipping time. An alternative model, the AE1006, is usually always in stock. Programming is straightforward and can be done via an app on your phone.

Q: What intercom solution works for a 9-unit HOA on a gated street wanting to move away from landlines and damaged underground cables?
A: The IO1057 cellular intercom with individual buttons is a good option, though it still requires wiring to the gate opener. Wireless relays from companies like BWI Eagle may eliminate the need for underground cables. Custom-built units like the IO1057 take 3–4 weeks to build. If you need something faster, a directory-based model like the IO1111 are available in stock.

Q: What is the difference between the AE1006 and IO1111 intercom models, and do they work with T-Mobile?
A: The AE1006 and IO1111 mainly differ in appearance. The AE1006 is in stock, while the IO1111 is built to order. Both work with T-Mobile or AT&T cellular service, or any GSM-based carrier. The directory feature cannot be hidden, and a directory must be programmed for the system to function properly.

Q: Does the IO1111 intercom have a built-in door buzzer relay, and what is the lead time?
A: Yes, the IO1111 includes a built-in door buzzer relay. It is sometimes in stock or the lead time is about 4 weeks since it is built in the UK, which includes shipping time. An alternative model, the AE1006, is usually always in stock. Programming is straightforward and can be done via an app on your phone.

Q: What wireless intercom options are available for a 40-unit building needing up to 100 access codes and cellular connectivity without an internet connection?
A: The recommended options are the IO1111 the AE1006, and the IO1036. These systems call residents directly on their phones and include an admin app. Video versions like the AL1002 are internet-based but less suitable where vandalism is a concern.

Q: What is the best option to update a 56-unit apartment building from a 2-wire intercom to a wireless single door entry system?
A: The IO1111 cellular-based system is recommended for its ease and speed of installation.

Q: Can the IO1040 cell phone intercom be wall-mounted, and does it support duplex audio and door unlocking?
A: Yes, the IO1040 and the IO1038 can be wall-mounted. It provides duplex audio similar to a telephone and can be used to unlock a door.

Q: What intercom options are available for a wired gate-to-house connection 300 feet away, with the possibility of transferring calls to a cell phone?
A: To transfer calls to a cell phone without a landline, a cellular intercom with service and a monthly fee is required, such as the IO1115 Cell Phone Network Intercom, which works on GSM-based networks worldwide, including Canada.

Q: What wireless intercom options are available for both cars and trucks, with keypad dialing for cars and one-button dialing for trucks, and can it include video and a pedestal with two mounts?
A: Video cellular gate intercoms with keypads are available that meet these requirements. A pedestal with dual mounts can be provided to support both the main keypad intercom and an additional call button unit.

Q: Do you deliver in Canada, and do you have an emergency callbox for a parking lot in a remote area where GSM will work?
A: Yes, delivery is available to Canada except for MURS intercoms. A SIM card is required for GSM models, but they do work with all Canadian carriers. The IO1115 One-Button Cell Intercom Gate Pedestal or Wall Mount kit is an option, but it uses the same manual as the Modular Cell Intercom and has no separate manual.

Q: How can I get help activating my SIM card?
A: Contact AES directly for SIM activation assistance, as they provide the service.

Q: Does the replacement intercom cell or wifi board have a warranty if the previous one corroded within a year?
A: The boards, such as those from AES, generally come with a one-year warranty. Corrosion should not normally occur, so warranty coverage should be verified directly with AES.

Q: What system allows a gate to open based on a keypad call using only an internet connection, and does it require monthly service fees?
A: The IO1123 or IO1094 Wi-Fi or CAT-5 Video System with Keypad allows gate control via smartphone app through an internet connection. There are no monthly service fees for using these systems or the associated app.

Q: How can a customer specify custom text for the “1 Button Emergency Cell Intercom Callpoint,” and what are the available options and lead times?
A: Custom text, such as “Push for Help,” can be specified for the blue version, but it requires 4–6 weeks manufacturing time. The black IO1115 model is typically in stock but does not allow customization, though users can add their own label. The black version supports non-Verizon SIM cards such as AT&T. For quotes, customers can select the “Quote” payment method at checkout to receive an invoice including shipping and tax-exempt status if applicable.

Q: How can a Doorking 5G cellular call box be replaced with a VoIP or other intercom system to eliminate monthly fees, and what about tenant directory capability, carrier support, monthly costs, and LiftMaster gate integration?
A: Wireless VoIP options such as the Opyn IP Video with Keypad or the WiFi/CAT-5 Video Intercom Module can operate over a point-to-point WiFi system, but they do not include a built-in tenant directory. Multi-tenant operation requires systems that typically have monthly fees. All wireless multitenant systems still require paid service. AT&T 4G is still fully supported and does not require 5G; the modems are software-upgradeable. Cellular monthly cost is about $22 through IntercomsOnline, which is generally lower than Doorking’s rates. Integration with LiftMaster gate openers is simple and uses two low-voltage control wires already present at most installations.

Q: Are your cameras adaptable to Ghost Controls gate systems?
A: Intercoms with cameras do work with Ghost Controls. Here is more info: https://www.intercomsonline.com/intercom-system-for-ghost-control-gate-openers

Q: What brand is the IO1115 cell intercom?
A: The IO1115 intercom is manufactured by AES in the UK.

Q: Can I add an external antenna to the One Button Cell Intercom, part number IO1115?
A: Yes. The unit uses a standard SMA connector, so you can connect an external antenna, such as the AE1058, to improve signal strength.

Q: I need a basic audio intercom to open a shipping and receiving door using a cellular phone. What do you recommend?
A: Our cellular intercoms are designed for that application. The IO1115 is a good option for a single door. If you prefer WiFi or Ethernet connectivity, the IO1123 can connect via WiFi or CAT-5 and does not require a monthly service fee.

Q: Will your 4G cellular gate intercom with keypad work in Canada on the Rogers network?
A: Yes. All of our cellular intercom units are compatible with Canadian networks, including Rogers.

Q: Does the cellular gate intercom include a SIM card, and how is it programmed?
A: The unit does not include a SIM card; you must provide your own. Programming is done through a smartphone app, not via a computer or SMS messaging.

Q: Can a cellular gate intercom automatically open for exiting vehicles, and what happens if cell service is down?
A: Automatic exit can be handled using a wireless gate exit loop available under Other Products on our website. Entry via keypad is independent of cellular service, so manual code entry will still work even if cell service is down.

Q: Do you have an intercom that can call multiple phone numbers in sequence until someone answers?  
A: Yes, the cell intercom models have that capability; they call the first number and, if there is no answer, automatically call the next number and continue in sequence for up to four phone numbers, with the IO1115 as an example of a suitable model.

Q: Are the AL1020 and AL1021 clean room intercoms UL listed, what chemicals are they resistant to, and can I get a shallower unit for 2-inch clean room panels or a simpler option?  
A: For the AL1020 and AL1021 clean room intercoms, the power supply is the component that must be UL listed and it is UL listed, and there is a documented list of chemical and disinfectant resistance available by contacting us through [email protected]. For installations with panels around 2 inches thick where the standard unit is too deep, the AL1020/AL1021 cannot be supplied in a shallower version, but there is a thinner, more expensive clean room model available (the IO1126), and if a simpler solution is preferred. The AL1020 and AL1021 are the more basic models compared with the IO1126.

Q: Do you sell a cellular intercom that works directly with Verizon?
A: We do not sell intercoms that use Verizon service directly. Our cellular intercoms use GSM technology, which is compatible with carriers such as AT&T, T-Mobile, and Consumer Cellular. While they cannot use a Verizon SIM card, they can call Verizon phones without issue since they can dial any phone number.

Q: Will part number IO1115 work with a Verizon SIM card?
A: No. Part number IO1115 is a GSM-based cellular intercom and requires a GSM-compatible SIM card. In the U.S., compatible carriers include AT&T, T-Mobile, and Consumer Cellular. Verizon SIM cards are not compatible with this unit, and we do not offer a Verizon-based alternative.

Q: What cellular gate intercom can replace a Doorking 1862 for a three-property gate with call buttons and two-way voice?
A: For a shared gate serving three properties, a cellular intercom with multiple call buttons and two-way voice is recommended. The IO1057 modular cellular intercom can be configured with three call buttons, allowing guests or delivery drivers to call property owners and communicate clearly. It provides cellular calling capability and avoids unreliable landlines. Compatibility with proprietary Doorking call-out functions is not supported.

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