The Ports tab displays a list of the current port service mappings, and lets you enable or disable UPnP port forwarding. To enable or disable UPnP port forwarding: Set UPnP port forwarding to ON to allow UPnP devices on your Fiber network to set their own port forwarding rules.
VRML (Virtual Reality Modeling Language) is a language for describing three-dimensional (3-D) image sequences and possible user interactions to go with them.
Variable refrigerant flow (VRF) is an air-condition system configuration where there is. one outdoor condensing unit and multiple indoor units. The term variable refrigerant flow. refers to the ability of the system to control the amount of refrigerant flowing to the.