Again, that depends on the type of phone system you want! Line rental in its purest sense means paying for your landline to make traditional analogue calls. This tends to cost around $40 per month, but as with any service, that price tag can vary depending on your system supplier. While not technically correct, many people also use the phrase ‘line rental’ when talking about paying for a VoIP phone system – usually, one with SIP technology. As we’ve covered in the FAQ above, hosted VoIP systems tend to cost between $15 and $60 per user, per month, while on-premise systems can cost $5,000 or more upfront, plus the cost of your calls.