Keep your line clear
Having a home phone line to operate your security system is a reliable method of communication, but with advancements in technology we are using those lines for so much more.
DSL internet customers know that they now share their phone line with their internet, and the ability to "keep the line clear" during an emergency is vital. That's why we install a DSL filter on every landline system being used for DSL internet. It filters out the digital "noise" produced by the internet, allowing your security system to speak freely and clearly to the monitoring station.