Define Grade of service.

17. Define Grade of service.

Grade of Service (GoS) is a performance parameter used in telecommunications networks to measure the quality of service experienced by users. It represents the probability of a user being blocked or experiencing congestion when attempting to access or utilize network resources.

In telecommunication systems, such as voice or data networks, resources such as channels, bandwidth, or processing capacity are limited. The Grade of Service provides an indication of how well the network is able to handle the demand for these resources.