SONET - Synchronous Optical Network

An interface standard for synchronous optical fiber transmission, applicable to the physical layer of the OSI (Open Systems Interconnection) reference model. SONET was developed by the Exchange Carriers Standards Association. SONET has a similar architecture to SDH ( Synchronous Digital Hierarchy).


  • Fully interactive 3GPP based network map
  • Narrated call flows
  • Detailed network procedures

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