Not necessarily. Nowadays most home security systems use a cellular network to operate and stay in contact with the accessories. It’s like the base console would have its own cellphone. This technology allows the home station to be completely wireless, and only needs to be plugged into a power outlet. In case you still insist on using your landline for the connection with the monitoring center, then seek out a home security company that offers consoles that rely on it. As an example, LifeShield provides a main hub that is compatible with both cellular, VoIP and landline connections.