The landline versus VoIP debate isn't close anymore for most small and mid sized businesses, but the reasons matter more than the conclusion.
Traditional landlines are tied to physical infrastructure. That means fixed costs, slow moves when you relocate or expand, and almost no flexibility for remote or hybrid teams. VoIP (Voice over Internet Protocol) runs on your internet connection, so your business number follows your team, not a wall jack.
The trade off worth knowing: VoIP call quality depends on your internet connection. A shaky connection means shaky calls. That's why choosing a provider who manages both your connectivity and your voice service, rather than one who only sells you a phone app, tends to produce fewer headaches down the road.