Network switches come in two different flavors: managed, where you have some interface to configure and monitor the equipment, and unmanaged where the device just does what it is supposed to do ...
Switches support different types of Ethernet, and various VoIP standards. Some suppliers describe switches as unmanaged or managed. Unmanaged switches have less network capacity, but are easy to ...
How much time you have, how much technical knowledge you have, and how large your budget is are three things you need to ask yourself when you are considering managed vs unmanaged hosting.