Do I Need Land Line Phone For an ADT Monitored Security System?

The short answer is, “It depends on the ADT monitored home security package you purchase.”

ADT monitored security $36.99/ month Essential Package does require a landline. ADT monitored security $48.99/ month Premium CellGuard® Package does not require a landline to work.

Benefits of the CellGuard package:

1- Phone Line Cut Protection

When you have a landline, your phone line is susceptible to being cut. This can happen by accident, perhaps if your neighbor is digging up their yard to put a garden in. On a more serious note, a burglar could easily snip your phone line outside your house, thereby rendering your home security system useless. With ADT monitored home security packages that include CellGuard®, these threats to your safety are eliminated.

2- Faster Signal

Traditional landline phone lines can take up to 4x longer than signals sent via cellular communications to reach ADT’s central monitoring stations. Statistics show that home security systems sending a signal over a landline take 26 seconds to dial up and connect to a monitoring station. Whereas, it only takes 6 seconds to make a connection over cellular service. In emergency situations where seconds count, making 20 seconds faster can mean the difference between life and death.

3- Not Locked Into One Phone Service Provider

If you choose a home security package that requires a land line, you will need to place a service call to ADT in the event you decide to change your home phone service provider in the future. That’s because the hookup is different based on the type of land line you have. Plus, if you decide to follow the trend of most homeowners and eliminate your land line in the future, you won’t have to worry about paying to upgrade your home security package in the future.


While having a landline phone allows you to invest in a less expensive home security package up front, we believe the benefits of having a home security package that works with your cell service is the better long term choice. You’ll enjoy greater flexibility and be offering your family a higher level of protection against burglars and emergencies. To speak with an ADT Authorized Premier Provider representative now, call 1-866-946-8419 or contact us with any additional questions.


Our Expert Opinion

Harry Mehserdjian Harry Mehserdjian
Home Security Consultant

“If you just want the cheapest ADT monitored home security package with basic protection, then you’re going to need a landline to operate it. This might make sense for you if you already have a phone line installed in your house. These days, many people don’t have land line phone lines in their home and in these cases, we recommend you purchase one of the Premium Packages with CellGuard, which operates over your cellular signal. There are 2 reasons for this recommendation.

First, a landline is going to be an extra monthly expense that could cost you anywhere from $30-$50 per month, so you have to factor that in. Second and more importantly, we recommend consumers choose a package with CellGuard because of the added security benefits, such as phone line cut protection, faster signals, and not being locked into who your phone provider is.”

Disclosure: Above opinion is my own opinion and I do not receive compensation to provide my opinion. My opinion does not reflect the opinion of Protect Your Home. Last updated on May 2016.



Have us call you

By checking the box, you consent for Protect Your Home to use automated technology to contact you at the number provided above regarding home security. You are not required to provide this consent to make a purchase from us.

Ready to Get Started? Call Now 1-866-946-8419

Call Now 1-866-946-8419