In most cases, you do not need a landline for house arrest. The monitoring equipment courts assign today usually communicates over cellular networks, so no home phone line is required. The exception is older radio frequency (RF) systems, where the home receiver may still transmit through a wired telephone connection. Which category you fall into depends entirely on the technology your court or supervising agency chooses, so confirm it with your probation officer or monitoring company before your start date.
When a Landline Is Still Required
Some RF-based systems depend on a wired telephone connection. In the federal system, RF technology requires both an electrical power source and a telephone landline to transmit data from the home receiver to the monitoring center.1United States Courts. How Location Monitoring Works Some county and municipal programs run on similar legacy equipment. If you don’t already have a phone line, you’d need to arrange installation before monitoring begins.
RF monitoring works through a tamper-resistant ankle transmitter and a receiver unit in your home. The transmitter sends a constant radio signal to the receiver, which checks whether you’re within range and alerts your supervising officer if you leave or if the device detects tampering.1United States Courts. How Location Monitoring Works The receiver needs some way to talk back to the monitoring center, and on older units that path is the phone line. Newer RF receivers sometimes offer cellular or internet-based alternatives, but if your jurisdiction uses legacy equipment, a landline may be the only option.
Basic landline service from major providers typically runs between $10 and $30 per month before taxes, depending on your area and whether you bundle it with other services. That cost falls on you, on top of any daily monitoring fees.
One question that comes up often: does VoIP count as a landline? Services like Vonage or magicJack route calls over the internet rather than through copper wiring, and older monitoring receivers may not work reliably with them. If your system calls for a landline, confirm with your monitoring company whether VoIP is acceptable before signing up.
When a Landline Is Not Needed
GPS monitoring tracks your location continuously using satellites, cellular towers, and sometimes Wi-Fi. The ankle unit is self-contained and reports your position in real time directly over the cellular network, so there is no home receiver and no landline involved.2United States Courts. Federal Location Monitoring Because GPS follows you everywhere, courts can enforce curfews, approved locations, and exclusion zones from the same device.
The federal system also uses two lighter-touch options. Voice recognition requires you to call in periodically, leaving a message that gets matched against a stored voiceprint. A virtual mobile app verifies your location using your smartphone’s GPS along with facial recognition or a fingerprint.2United States Courts. Federal Location Monitoring Neither needs a landline, though voice recognition does require some kind of phone access, which could be a cell phone.
Newer RF home units with built-in cellular transmitters also bypass the phone line. Many modern monitoring devices are designed to connect through cellular, Wi-Fi, or Ethernet, giving multiple paths back to the monitoring center without any wired phone service. That shift is the reason most people placed on house arrest today will never need a landline installed.
A judge decides which monitoring technology to use case by case, guided by a risk assessment and the requirements of the law.2United States Courts. Federal Location Monitoring Higher-risk cases tend to get GPS, which means the more intensive form of monitoring is also the one least likely to require a phone line in your home.
How to Confirm Your Requirements Before Day One
Monitoring requirements vary based on your court order, the jurisdiction handling your case, and the agency or company supervising you.2United States Courts. Federal Location Monitoring Federal cases are handled by probation and pretrial services officers. State and local cases may involve a county probation department, a sheriff’s office, or a private monitoring company, and the equipment they use can differ. Don’t assume anything based on what a friend or relative experienced. Even within the same county, different cases can be assigned different equipment.
Before your start date, get clear answers to a few questions:
- What technology is being used: GPS, RF, voice recognition, or a mobile app? That alone determines whether you need any home equipment.
- If there is a home unit, what connectivity does it need: landline, cellular, Wi-Fi, or Ethernet? If a landline is required, ask whether VoIP service is acceptable.
- What are the daily fees, including any setup or installation charges, and are reduced fees available?
- What is the daily charging schedule for an ankle unit, and what happens if the battery runs low?
- Who do you call for equipment problems? Get a direct number so you can report a malfunction before it looks like a violation.
Your probation officer, attorney, or the assigned monitoring company can answer all of these.
Treat Your Home Connection as Essential
If your monitoring system does rely on a landline, the phone service becomes part of your compliance. The same is true for Wi-Fi or Ethernet when the home unit uses those. If the connection drops, the receiver can’t report to the monitoring center, and that silence can register as a problem rather than a billing issue. A lapsed phone or internet bill that cuts off your service can turn into a violation hearing, so pay those bills on time for the duration of your sentence and tell your officer right away if the service goes down for reasons outside your control.
House arrest fees themselves vary widely. Daily charges typically range from a couple of dollars to $25 or more, depending on the jurisdiction and the technology, and some programs add a one-time installation or setup fee. At least half of all states have statutes authorizing monitoring fees, though many don’t specify an exact amount, leaving the monitoring provider or supervising agency to set its own rate. The court may order you to cover all, part, or none of the program costs depending on your financial situation.3United States Courts. Chapter 3 Location Monitoring (Probation and Supervised Release Conditions) If a landline is required on top of monitoring fees, add roughly $10 to $30 per month for basic phone service to your budget, and raise affordability concerns with your attorney or officer early rather than after the bills start arriving.