As more and more consumers eliminate their traditional phone lines (also known has Plain Old Telephone or POTs lines), the good news is you don’t need a phone line to have your alarm system monitored. Vector Security has wireless alarm systems that run on cellular technology.Click to see full answer. Similarly, you may ask, does alarm system need phone line?You can buy a security system without a landline, or a landline security system. Typically, a security system without a landline uses cellular technology to communicate with the security company’s monitoring center. A landline security system uses your home telephone line to reach the monitoring center.Beside above, how do I hook up an alarm to my phone line? You can wire a POTS line to your security system by first wiring an incoming phone line to an RJ jack. The RJ jack will then connect to the on-site landline phones and to the alarm system. Your security system must be compatible with pots service in order to use this type of communication. Also asked, do you need a phone line for ADT security system? To have an ADT monitoring system, you don’t have to have a landline, although it is an option. Landline security systems do exactly as they sound—use a landline connection to function.Are two phone lines required for fire alarm system?New Requirements for Fire Alarm Control Panels. Most fire alarm control panels (FACP) currently use two traditional phone lines to meet an older requirement of the National Fire Protection Association (NFPA) 72, National Fire Alarm and Signaling Code. With phone lines going away, changes will need to be made.