The telephone entry system was originally designed for gated communities, apartment complexes, and multi-family properties, but modern wireless and cloud-based systems have made this solution a popular choice for commercial entities, as well. This guide will outline the different types of telephone entry systems and the best brands on the market.
Types of telephone entry systems
Before installing a telephone entry system on any property, it's important to understand the key features and functionality of each available type.
Cellular
Rather than a landline or internet connection, cellular keyless entrance systems rely on the same networks as mobile devices. This is great news for areas with strong cellular service.
Here's how it works: A visitor approaches the call box and searches a digital directory to find the tenant or company they're there to see. Once selected, the system calls the appropriate contact, who can then activate the front door or gate remotely with the press of a button.
Voice over Internet Protocol (VoIP)
Often found in modern businesses and smart buildings, VoIP systems use an internet connection to place calls. They can be more cost-effective than traditional phone lines, but require reliable online connections to stay up and running.
POTS (Plain Old Telephone Service)
Classic landline telephone entry systems have been used for decades and feature high reliability. While many of these protocols can keep working even during power outages, they offer fewer advanced features and limited remote management capabilities.
Wireless
Thanks to WiFi, Bluetooth, RF technology, and cellular connectivity, wireless telephone entry systems are becoming more prevalent. These systems don't require the same trenching and groundwork of many alternatives, helping reduce installation costs and disruptions.
While all cellular telephone entry systems are wireless, some VoIP models require a wired Ethernet connection.
Essential components and parts
Each telephone entry system consists of critical components that enable seamless communication and access control, including:
Main control board
You can think of the main control board as the brains of the operation. This is the central processing unit that manages communications, processes visitor calls, and verifies access credentials.
Keypad assembly
The keypad assembly is the interface guests use to contact the business or resident they're visiting. These intercom systems may include a keypad, call button, speaker, microphone, video security camera, and display screen.
Electronic directories
Each telephone entry keypad includes a digital directory of tenants that can be searched by resident name, business name, suite number, or apartment number, making it easy for visitors to quickly locate the correct contact. Many databases offer simple navigation tools and support remote updates.
Cellular and VoIP modules
In order to contact tenants by phone, you need a reliable communication platform. While landlines were standard in the past, modern systems use cellular and VoIP modules.
Cellular options connect through 4G LTE or 5G networks, which works well for locations without wired internet or phone lines. VoIP systems use an internet connection to route calls through cloud-based services, desk phones, smartphones, or mobile apps. Some advanced systems offer both options.
Expansion nodes
What happens if a business or gated community outgrows its telephone entry system? Many modern systems support additional modules using a series of expansion nodes. These devices allow property owners to add more access control points and more credentialed users for greater scalability without major overhauls or rewiring.
Relays
Relays are electronic switches that physically control access devices on buildings and at vehicle entry points, such as:
- Electric strikes
- Magnetic locks
- Automatic gate operators
- Vehicle barriers
- Automated doors
When residents or managers accept a request, the control board tells the relay to engage the gate opener or lock.
Proximity card readers
Authorized users don't need to place a call to gain access. Instead, they present a key fob, access card, or compatible smartphone with mobile credentials. The reader authenticates the credentials and unlocks the door or gate if permission is granted.
Top manufacturers
The right telephone entry system is out there, and Access Distribution Centre can help you stock the best models for your clients. Here are three of our most reliable manufacturers:
DoorKing (DKS)
DoorKing is well-known for telephone entry systems designed for single-family homes, sprawling commercial properties, and everything in between. Durable hardware, extensive access control capabilities, and total integration with automated gate operators make their products incredibly popular for gated communities, apartment complexes, and industrial properties.
Select Engineered Systems (SES)
For sites that require greater customization and flexible configurations, Select Engineered Systems is hard to beat. This brand prioritizes adaptability, and many products are designed with growing facilities in mind.
Aiphone
Aiphone is considered an industry leader in the world of telephone entry systems. Highly advanced audio and video access devices offer user-friendly interfaces and integrate seamlessly with building security, surveillance, and alarm systems.
Explore top manufacturers at Access Distribution Centre
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