Cost and maintenance
A traditional fax setup can require a machine, toner, paper, a phone line, repairs, and someone nearby to manage inbound pages.
Online faxing usually shifts that cost into a software plan or per-send purchase, which can be easier to scale for occasional or remote use.
Speed and access
With a physical machine, sending and receiving are tied to one location. That can slow down teams that work from multiple offices or outside the office.
Online faxing lets people send from a phone, tablet, or computer, and it can keep fax history and delivery status with the account.
Workflow fit
A traditional fax machine may still make sense for a high-volume office with established paper workflows.
Online faxing usually makes more sense when documents already start as PDFs, scans, photos, or digital files, or when people need to send and receive while away from a fax machine.
