Gate and Door Entry Phone Line Replacement
Keep gate intercoms, door callboxes, and visitor-entry phones answering after the analog lines retire. Installed across Metro Atlanta.
Gate intercoms and door entry callboxes are how visitors, deliveries, and first responders get into your property. Most of them dial out over an analog POTS line. POTS lines, the analog phone lines buildings have run on for decades, are being retired. AT&T, Verizon, Lumen, and Frontier have all filed discontinuance notices with the FCC, and in March 2025 the FCC cut the required customer notice period from 180 days to 90. A carrier can now give your building three months of warning before the copper goes dark.
When a gate phone goes dead, residents cannot buzz in a guest, deliveries pile up, and an ambulance crew is left at a locked gate. We replace the line behind the intercom with a dual-pathway POTS-in-a-Box device, so entry keeps working without the carrier copper.
The life-safety solution we install carries the approvals inspectors and insurers look for









Where Gate and Entry Lines Fail
- Gated community and apartment entry gates. Telephone-entry systems that dial a resident to grant access.
- Office and parking-garage callboxes. After-hours and loading-dock entry.
- Door entry intercoms. Multi-tenant building front-door phones.
- First-responder access. Knox-box and emergency entry phones fire and EMS depend on.
Your Entry System Does Not Change
The telephone-entry panel, the callbox, and the directory all stay. Only the carrier line behind them is replaced. The POTS-in-a-Box device delivers a standard dial tone, so the entry system places its calls exactly as before, and we port the existing number so resident directories stay accurate.
Dual-Pathway, Not Just Cellular
Every device we install runs dual-pathway. The line travels over cellular and over your building internet at the same time, and it fails over automatically the instant either path drops. Cellular-only replacements lose the line in a dead zone or a tower outage. Internet-only setups lose it whenever the building connection blips. Two independent paths is what keeps the line up when it is needed most.

It Costs Less Than the Copper You Have Now
Carriers now charge $80 to $280 per copper line every month, and the price climbs every year as they push the last customers off the network. Our POTS replacement starts under $30 per line per month. For most buildings the replacement costs less than the copper line it retires, and it is a more reliable line.
Install Process
Most gate and entry lines are a single-visit install:
- Site visit, about 30 minutes. We identify every line, check signal on both pathways, and confirm the power source.
- Number port. We port your existing numbers from the current carrier. It takes about two weeks and runs in parallel with the install.
- Install the POTS-in-a-Box device. It plugs in where the copper line was. The equipment behind it does not change.
- Test every line. We confirm a real dial tone and that the connected equipment recognizes the line.
- Decommission the carrier line. We coordinate the cancellation so you never double-pay.
Get a Free Gate and Entry Line Quote
Tell us how many gates and entry phones you have. We confirm the line count, check signal at each gate, and send a fixed-price quote.