Best Telephone Entry Systems for Chicago Buildings
Our 2026 picks for apartment buildings, condo associations, and gated properties across Chicago that use phone-line or cellular entry. Installed and serviced by The Professional Locksmith.
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Top picks at a glance
What telephone entry actually does
A telephone entry system lets a visitor at the door or gate call a resident, who can then talk to them and release the door from their phone. It works over a building phone line or a cellular connection, so residents do not need a dedicated handset or an app. It is the proven, low-friction choice for Chicago condo associations and apartment buildings that want a simple, durable directory-and-callbox setup.
The Professional Locksmith specifies, installs, and services the systems below, and can reuse existing wiring and directory data where possible.
1. DoorKing
Our pick for: the industry standard
DoorKing (DKS) is the most widely installed telephone entry and gate access brand in the country. The hardware is rugged, well documented, and supported by virtually every access installer, which makes long-term service and parts easy. A safe default for Chicago condo associations and gated communities.
Strengths proven reliability phone or cellular options easy long-term service
Watch for classic interface pair with cellular if the building is dropping copper lines
Learn more about intercom and entry installation
2. Mircom
Our pick for: apartment and condo directories

Mircom telephone entry is a familiar workflow for Chicago property managers, with rugged callboxes and straightforward directory programming. A strong fit when a condo board wants to keep a traditional phone-based system that residents already understand.
Strengths simple resident workflow durable hardware familiar to property managers
Watch for less modern resident experience than video platforms
Learn more about intercom and entry installation
3. Linear
Our pick for: gates and mixed entry
Linear telephone entry and gate units are a practical, cost-effective option for parking gates and smaller multi-tenant properties. They cover the core need (call, talk, release) without a heavy back-end, and pair well with gate operators on Chicago properties.
Strengths good value works with gate operators phone or cellular
Watch for best for core entry needs, not a full video or app platform
Learn more about keyless entry options
Match the system to your property
Who installs telephone entry in Chicago
The right system fails if the wrong installer specs it, wires it, or supports it. Here are the Chicago providers we recommend, ordered by best fit for most local properties.
Why The Professional Locksmith
Years installing and servicing entry systems across Chicago. Licensed, bonded, insured (IL Lic. # 192.000311). The same team specs the directory, installs the callbox, and ties it to the door or gate hardware, so there are fewer handoffs when something needs attention later.
Get a Site Walk · (312) 796-0901
Frequently asked questions
What is the difference between telephone entry and a video intercom? Telephone entry connects a visitor to a resident over a phone line or cellular, with no app or screen required. A video intercom adds camera and app features. Many Chicago boards prefer telephone entry for its simplicity and low resident friction. See our video intercom guide if you want camera-based entry.
Can we keep telephone entry if our building is dropping copper phone lines? Yes. DoorKing and other systems can run over a cellular connection instead of a copper line, so residents keep the same call-and-release experience.
Can you reuse our existing directory and wiring? Often, yes. We can usually reuse existing callbox wiring and migrate the resident directory rather than rebuilding it from scratch. We confirm during the site walk.
How long does a telephone entry install take? A typical condo or apartment callbox replacement is usually completed in a day, depending on wiring condition and directory size.
Will The Professional Locksmith service a system installed by someone else? Yes. We regularly take over service on DoorKing, Mircom, and Linear telephone entry installed by another vendor.
Upgrade your Chicago building’s entry system
Get a Site Walk · (312) 796-0901
Related: Best Video Intercom Systems · Keyless Entry Systems · Intercom Installation
