What is the difference between simple fax number porting and complex fax number porting?

Simple fax number porting refers to a simple service or number configuration, whereas a complex fax number porting refers to a complex service or number configuration, including but not limited to services with a Duet, Line Hunt, in-dial, On Ramp, ISDN or digitally hosted numbers. We recommend that you check with your current carrier to determine whether the port will be simple or complex.