Various security system equipment components and monitoring options are available that serve to enhance your basic wireless security system and services. These options can include alert systems, such as medical alerts, smoke and/or carbon monoxide detectors, even security cameras. You can even opt for the hands free two way voice communication or cell phone only options, ask about either when you call. After a call for help or an alert signal, you'll receive prompt response from ADT's command center personnel. Wireless Home Security Systems are easier to install than the traditional hard wired systems. No holes in walls are required. As a matter of fact, you don't even need a traditional landline telephone as new cellular technology allows transmission of alerts via existing satellite infrastructure.