Telephone Entry and Gate Call Box Systems in the Bay Area
A call box at the gate rings your phone, so you talk to the visitor and press a key to open. Plus, you can add a keypad for coded entry, and because cellular models run on LTE, there is no landline needed. We install and service gate telephone entry across the Bay Area.
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Gate access from any phone, with or without a keypad
A telephone entry system, also called a gate call box, lets a visitor at the gate press a button to dial your phone. Then you answer on your cell or landline, speak with them, and press a key to open the gate. Because most call boxes also include a keypad, residents and staff can enter a PIN code to let themselves in without calling.
Since it works from any phone, telephone entry is the simplest, most proven way to control a gate. In addition, cellular models need no phone line at the gate, and there is no app to learn. As a result, it is a great fit for driveways, small buildings, and apartment directories. However, if you also want to see who is at the gate, our access control and video intercom systems add live video.
Written and reviewed by the Automatic Gate Masters install team, licensed California contractor #1060180, San Jose. Last updated June 2026.
How a gate telephone entry system works
Three simple steps, whether the visitor calls you or a resident enters a code.
Visitor presses call at the gate
First, the call box dials your phone. In a multi-tenant building, it also scrolls a directory, so the visitor can dial a specific unit.
You answer on your phone
Next, you talk to the visitor from your cell or landline, wherever you are. If no one picks up, the system can ring several numbers until someone answers.
Press a key to open
Finally, press the open key on your phone and the gate opens. Alternatively, residents and staff can skip the call and enter a PIN code on the keypad.
Telephone entry and call box options
From a single driveway to a full apartment directory. We match the call box to your property and connection.
Phone and keypad call box
This is the classic driveway setup, so visitors call your phone to be let in while you or your family enter a PIN on the keypad. As a result, it stays simple, reliable, and affordable for one home.
Cellular and GSM call box
Because it connects over an LTE cellular signal, it works where there is no phone line at the gate. Therefore you can answer on your cell, open from anywhere, and manage codes remotely.
Multi-tenant directory call box
Here, a scrolling resident directory lets visitors find and dial any unit, while each resident answers on their own phone. In short, it is built for condos, apartments, and gated communities.
Keypad and code entry
If you prefer codes over calls, a standalone keypad gives residents, staff, and trusted visitors their own PINs. Later, you can also add a phone call box whenever you want.
We install telephone entry from LiftMaster, DoorKing, Linear, and cellular CellGate. Call (650) 560-4646 and we will size it for your gate.
What a telephone entry system does
Everything you need to control gate access from your phone, with or without a keypad.
Calls your phone
When a visitor presses call, the box dials your cell or landline, so you answer and open from anywhere, not just from inside the house.
Keypad PIN codes
Because everyone gets their own code, residents, family, and staff let themselves in without calling. Plus, you can change or remove a code any time.
Cellular, no landline
Since they run on an LTE signal, cellular and GSM models are ideal for gates and rural driveways with no phone line. As a result, the gate only needs power.
Apartment directory
In multi-tenant buildings, the call box lists residents in a scrolling directory, so visitors dial the right unit while each resident answers on their phone.
Weatherproof and tough
Because it lives on an outdoor gate post, the unit is built tough, with vandal-resistant metal faceplates that stand up to Bay Area weather.
Remote code management
On connected models, you also add or remove codes and numbers from an app, so you manage access without a trip to the gate.
Want to see visitors, not just hear them?
Telephone entry is audio only. However, if you want live video at the gate, unlock from an app, or face and license-plate entry, then see our video intercom and access control systems, such as DoorBird, CellGate, LiftMaster, and Ubiquiti UniFi.
Why Bay Area property owners choose AGM
Licensed, insured, and gate-first. We install telephone entry as part of a complete, working gate system.
- Licensed CA contractor #1060180, fully insured
- Telephone entry, keypad, and call box experience
- Cellular setup where there is no landline
- Clean, weatherproofed, code-compliant wiring
- 4.8 average rating across Google, Yelp, Thumbtack
- Up to 2-year labor warranty
Serving the Entire Bay Area
Same-day service from San Jose to San Francisco.
Frequently asked questions
What is a telephone entry system?
Do I need a landline for a gate telephone entry system?
Can the gate call box ring my cell phone?
Do telephone entry systems have a camera?
Is telephone entry good for an apartment or gated community?
How much does a gate telephone entry system cost?
Get a free telephone entry quote
Tell us about your gate and we will recommend the right call box, cellular or landline, and give you a clear, written estimate.