The European Telecommunications Standards Institute (ETSI) released a new specification, ETSI GS F5G-011, that defines a telemetry framework and associated requirements for the Optical Access Network. The telemetry, by the data recovered and combined with analytics and artificial intelligence, will unlock the potential of the fifth generation of fixed networks, to provide end users with the optimised quality of experience of their fibre to the home (FTTH) network. Service providers and operators will benefit from the advantages of real-time monitoring with scale, speed, and automation using telemetry. Moreover, the telemetry will allow operators to gain better visibility and insight into the network as it introduces finer granular data points and more frequent data streaming in the Optical Access Network. In addition, telemetry data enable the prediction of network issues and the implementation of preventative measures without impacting the optical line terminal (OLT) performance, further enhancing the network's operational performance.