Terms, such as voice-over-internet-protocol (VoIP) caller and session initiation protocol (SIP) trunking are common, but many businesses don’t know what they really mean. Let Forbes Advisor help ...

It's called VLAN trunking, and it essentially passes tagged VLAN traffic transparently through its ports, so that it gets to the endpoint switch with the VLAN rules on it. It's also simple to set ...