Broken down by technology lifecycle stage, the data shows that current devices take about 48 minutes longer to repair than the average.
Ageing devices take the shortest time to repair - about 42 minutes shorter than average.
While obsolete devices take slightly longer to repair than ageing devices at 3.3 hours,
Schofield said the most effective way for organisations to improve their network service levels and ensure maximum availability was to invest in mature operational systems and support processes.
"Knowing the devices and their lifecycle stages, having sparing strategies for obsolete equipment, and understanding the potential network impact if devices fail will support greater network availability."