Access / Telephone entry

Telephone Entry Systems for Electronic Gates

A telephone entry system lets a visitor at your gate call you, and lets you open the gate from your phone.

We install and repair call boxes, keypads and the wiring that connects them to your gate operator, for gated businesses, communities, apartments and private drives.

Close-up of a stainless steel access keypad with numbered buttons

How a telephone entry system works

  1. A visitor calls from the gate

    They press the call button, or pick a name from the directory on a multi-tenant gate.

  2. Your phone rings

    The call box dials the number you choose, cell or landline, and you talk to the visitor.

  3. You open the gate

    Press a key on your phone and the call box signals the gate operator to open.

Drawing

Where each part sits

A typical telephone entry setup at an electronic slide gate.

  1. Call box with keypad
  2. Calls your cell phone or landline
  3. Wiring to the gate operator
  4. Gate operator
  5. Electronic slide gate
Diagram of a telephone entry system at an electronic slide gateLine drawing of a call box with a keypad on a gooseneck post beside a slide gate. A dashed line shows the call box reaching a phone, and a second dashed line underground shows the wiring to the gate operator.12345
Sheet E-1 · Telephone entry at a slide gateNot to scale

What we install and repair

Residents and staff can also open the gate with a keypad code, no call needed.

Call boxesLandline and cellular models. Cellular units work where running a phone line isn't practical.
KeypadsStandalone code keypads for drive and walk gates
DirectoriesName and code directories for apartments, offices and communities
ConnectionsWiring and relays between the call box and your gate operator
MountingGooseneck posts and pedestals set at driver height

Common call box problems

The call box doesn't ring through

Usually a phone line issue, weak cell signal, an expired service plan or a programming error.

The gate doesn't open after you press the key

The signal isn't reaching the operator. We trace the relay and wiring between the call box and the gate.

Keypad codes stopped working

Codes can be lost after a power problem, or the keypad itself may be worn or wet. We reprogram or replace it.

Hard to hear the visitor

Weather and sun wear out speakers and microphones. Replacing the faceplate or unit usually solves it.

Guide

Choosing the right kind of entry system

The right system depends on who uses the gate, how many people it must reach and what already runs out to it.

Landline call boxes

A landline call box connects to a phone line run out to the gate. It makes sense where a line is already in place or a building with one sits nearby.

Cellular call boxes

A cellular unit calls over a cell network, so no phone line has to reach the gate. It needs a usable signal at the gate and its own service plan.

Directory systems for multi-tenant gates

A directory unit shows a list of names that visitors scroll through to reach the right person. Apartments, office parks and larger communities use them so one gate can serve many households or tenants.

Keypad-only entry

A keypad opens the gate with a code and places no calls. It fits gates used only by people who belong there, such as a staff lot or a private drive with few visitors.

Systems that ring a phone app

Some call boxes ring an app on your phone instead of a phone number. Depending on the system, the app may also show who called or let you change codes.

Questions that help you choose

  • How many people or units does the gate need to reach?
  • Is there a phone line at the gate, and do you want to keep paying for it?
  • How strong is the cell signal where the box will stand?
  • Who will update names and codes, and how often?

The parts of a system

Every setup uses the same basic pieces, even when several share one housing.

  • Call box: the faceplate with the call button, speaker and microphone.
  • Keypad: the number pad for entry codes, built in or mounted on its own.
  • Directory: the list of names on a multi-tenant system.
  • Relay: a small switch that closes when you approve entry and tells the operator to open.
  • Wiring: low-voltage wire, usually in buried conduit, between the box and the operator.
  • Power: a low-voltage supply, often from the gate operator, sometimes with a backup battery.
  • Pedestal or gooseneck mount: the post that holds the box beside the drive.
  • Operator connection: the terminals on the operator's control board where the relay wires land.

How a call reaches you and how the gate opens

When a visitor presses call, the box dials out over its phone line or the cell network, or rings your app. Many systems can try a second number if the first doesn't answer.

While you're talking, pressing the open digit on your phone sends a tone back to the box. The box closes its relay for a moment, and the operator treats that like someone pressing an open button.

The operator then runs its normal cycle: open, wait out the timer, close. Safety devices such as photo eyes keep working as usual, and UL 325 is the safety standard for gate operators.

Managing access codes

Codes are only as secure as the habits around them.

  • Give each group its own code. Residents, staff, vendors and delivery drivers should not share one number.
  • Give individuals their own code where you can. Then you can remove one person without changing everyone's code.
  • Change codes when someone leaves. A former employee, tenant or contractor should not still be able to open the gate.
  • Never post codes publicly. Keep them off signs, listing ads, social media, group chats and notes on the call box.
  • Skip easy codes. Street numbers and runs like 1234 get guessed.
  • Change the master programming code from its factory setting. That code controls the whole system.

Visitor and delivery routines

Clear routines cut down on missed calls and drivers stuck at the gate.

  • Guests: have them press call or pick your name instead of sharing your code.
  • Delivery drivers: give them a separate delivery code you change often, or have them call through.
  • Service vendors: issue a code for the job, such as for a lawn or pool crew, and delete it when the work ends.
  • After hours: set the box to ring whoever is on call, not an empty office.

When a vendor, tenant or employee stops coming, delete their code right away.

Where telephone entry fits

  • Apartments: a directory lets visitors reach a tenant without unit numbers on display. Names change with every move, so pick a system the office can update easily. Many complexes pair the gate with automatic entry doors at the leasing office.
  • HOA communities: the board or management company usually controls the resident list. Ask your local fire department what it needs for emergency access, since that varies by city.
  • Gated businesses: visitors call reception during the day, and calls can roll to a manager's cell after hours.
  • Equipment yards: truck drivers sit high. A second call box or keypad at cab height saves them from climbing down.
  • Private drives and ranches: the gate is often far from the house and any phone line, so a cellular or app-based system is usually the practical choice.

Placing the call box

A visitor should be able to use the box without opening the car door.

  • Driver-window height: a seated driver should see the screen and reach the buttons.
  • Reach from the vehicle: put it on the driver's side, close to the edge of the drive.
  • Room to pull up: set it far enough from the road that a waiting car doesn't block traffic, with room to turn around.
  • Clear of the gate: keep the box and the waiting car out of the gate's swing or slide path.
  • Lighting: a lit keypad and a nearby light make the directory readable after dark.
  • Sun and rain: a box facing afternoon sun wears faster and is hard to read. A hood or a new angle helps.
  • Protection: a curb or bollard keeps bumpers and mirrors off the pedestal.

North Texas heat, storms and insects

Our weather is hard on anything that stays outside year-round.

  • Heat: summer sun fades screens and dries out the seals around speakers and buttons.
  • Lightning: a nearby strike can send a surge through the wiring and damage the call box and the operator board. Surge protection and good grounding reduce that risk.
  • Wind-driven rain: rain blown sideways gets behind worn gaskets and causes static and dead buttons.
  • Low spots: a pedestal set where water pools can flood at the base. We check drainage before picking a spot.
  • Insects: fire ants, wasps and mud daubers move into warm housings, and ants can short a circuit board. Seal conduit openings and check the box a few times a year.

When the power goes out

Plan ahead so nobody is stuck at a dark gate.

  • Know which parts of your system have backup power.
  • Keep the operator's manual release key where the right people can reach it, and show them how it works.
  • Replace backup batteries when they weaken. Heat shortens their life.
  • After power returns, test a call and a code, and check the clock if you use timed codes.

If the box or operator stays dead after the power is back, a surge may have damaged a board.

Upgrading from a landline unit to a cellular unit

Many owners switch when the phone line to the gate becomes unreliable or costly to keep.

We check the cell signal where the box stands first. A weak spot may need an outside antenna or a different location.

A cellular unit needs an active service plan from a carrier, which you pay directly. If the plan lapses, the box stops calling out, though keypad codes may still work.

Carriers sometimes retire older networks, and a unit built for one has to be replaced when that happens. Often the existing pedestal and operator wiring can stay, and we swap and program the unit.

What a project with us looks like

We start with a call about your gate and who uses it, then visit the site.

At the gate we look at the operator, power, any phone line, the cell signal and the distance to the operator. We also watch how cars approach so drivers can reach the box.

Then we go over the system, mounting and work involved, and put the plan in writing for you to review.

On install day we set the pedestal or gooseneck, run conduit and wire, and connect the relay. We program your numbers, names and codes, then test every number and code and open the gate from each.

Before we leave, we show you how to change numbers and codes and where the manual release is. If you need a new gate or operator too, see our commercial gates and wrought iron fencing page.

We do this work across North Texas, from apartment gates in Dallas and business entrances in Frisco to ranch gates around Farmersville.

What a service visit looks like

When you call, tell us what the box is doing, whether the gate still opens with a remote and whether a storm or outage came first.

On site we check the power, line or signal, programming, speaker, microphone, keypad, relay and wiring. We also confirm the operator responds to an open signal on its own, so we know which side the problem is on.

We explain what we found and your options before replacing anything.

Troubleshooting common symptoms

A few quick checks can narrow things down before you call.

  • The screen or keypad is dark: check the breaker that feeds the gate and whether the operator has power.
  • Calls drop after a few seconds: often a weak cell signal or a talk time setting that's too short.
  • The box rings someone who has left: the call list wasn't updated after a staff or resident change.
  • The gate closes before the car gets through: the operator's close timer may be too short.
  • The gate works by remote but not from the box: look at the call box, relay or the wire between them.
  • The gate opens by itself or won't close: a stuck relay or shorted wire can hold the open signal on. Stop using the gate and call us.

If the gate moves on its own or won't stop, keep people and vehicles clear and call (903) 294-1846.

What affects the cost

  • System type: keypad-only, single-number call box, directory or app-based.
  • Distance to the operator: longer runs mean more wire and trenching, and boring under a paved drive adds work.
  • What's already at the gate: existing power, conduit or a phone line can reduce the work.
  • Mounting: a pedestal, a gooseneck or a second unit for trucks.
  • Operator condition: an older operator may need repairs before it can take a signal reliably.
  • Ongoing service: a cellular plan or phone line is a separate cost you pay to the provider.

Once we've seen the gate, we can price the work for you.

How to get started

Call us at (903) 294-1846, Monday to Saturday from 7 AM to 5 PM, or send a request. You can also email prodoorsandgates@gmail.com. Emergency service is available by appointment after 5 PM Monday through Saturday and on Sundays.

Photos of the gate, the operator and where you'd like the box help us prepare.

Pro Doors and Gates is family owned and based in Bells, and we'd be glad to help with your gate entry.

Questions

Questions about telephone entry systems

Don't see your question? Call (903) 294-1846 or send us a message.

Do I need a phone line for a telephone entry system?

Not always. Traditional systems use a landline. Cellular call boxes use a cell signal instead, which helps at gates where running a phone line isn't practical. A cellular unit needs a service plan.

Will a telephone entry system work with my existing gate opener?

Most gate operators can take a signal from a call box or keypad. We'll check your operator and wiring before recommending a system.

Can residents or employees open the gate without calling?

Yes. Most systems accept keypad codes, and many also work with remote controls or card readers.

Can I change the phone number the call box dials?

Yes. Most systems let you update the numbers they call. Some can be updated online or by phone, and others need to be programmed at the unit. We can set it up for you.

What happens to a telephone entry system when the power goes out?

It depends on the call box and the gate operator. Some have battery backup, and most gate operators have a manual release so the gate can be opened by hand. Ask us about backup options when we install or service your system.

Cities we serve

We provide telephone entry systems for electronic gates across these Dallas-Fort Worth and North Texas cities. Pick yours for local details.

Tell us about your call box or keypad

Call or send a request with the address and what's going on. Photos help us bring the right parts.