Phone lines are being phased out of home surveillance markets for monitoring at a very high rate. Most households today have one to four cell phones, a high speed internet provider and no home phone line.
Actually surveillance system can be monitored via the internet. You will have to have a high speed internet provider. You will need to purchase an IP communication board for your alarm panel. Your alarm company central station will need to be able to support this application. It is a good idea to have your router and cable modem etc. on a small UPS to provide stability in case of a power failure.
You may also have your alarm monitored by a wireless unit. This unit is installed beside your alarm panel and sends the signals to your central station. This unit also removes the worry of phone or internet cables being cut or power failure concerns.
The trend is that technology is moving us away from phone lines. Alarm systems that are monitored via internet and wireless units will be the most popular methods of monitoring very soon. You have the ability to check the status of your home alarm or to arm/disarm it from your cell phone at the present time as well.