With a landline phone, you can always be reached at home or at the office. You can choose from a landline telephone with a traditional analogue connector or a VoIP landline telephone via your modem. Calling via VoIP is cheaper than calling via an analog connection. You do need a VoIP service for this. Do you want to be accessible in multiple rooms? Buy a landline with multiple handsets or expand your current device with a separate handset.